I woke up on Tuesday morning to a Twitter notification telling me Harry had tweeted - 'Looking forward to the show in Singapore.. Can't wait to see you all. All the love. H'

I knew they weren't performing until the following night, and decided to wait until nearer the time before I made any contact with Harry. It was Wednesday morning when I finally bit the bullet and decided to text him. I sat at my desk about 8am, swinging in my chair and typing things and then deleting them. For all I knew, he'd probably forgotten who I was. I settled on:

To: Harry Styles: Good luck tonight, hope it goes well x

It was just after 4pm that he replied. (I hadn't been checking my phone every five minutes for the entire day. Honest.)

From: Harry Styles: Thanks, it was amazing, the crowd was brilliant. We've just finished. What are you up to? x

I grinned stupidly at my phone for a couple of minutes, contemplating whether to reply, but before I could decide, another message came through. It was a picture message this time. I hurriedly tapped on it and couldn't contain my squeak of excitement as I realised what it was. It was a selfie, taken by Harry, with the rest of One Direction. They were in what looked like a backstage area, and looked all sweaty, as if they literally had just walked offstage. They were all grinning at the camera. I positively beamed at my phone, and Sarah, who had heard my excited squeak, looked up.

"What's got you so gidd... oh my God has Harry texted you?" She jumped out of her chair and raced over to my desk.

There was no point trying to hide it; my face was giving me away. I turned the phone towards her to show her the picture message and she squealed in excitement. The entire office was now looking over. "Send him one back!" she urged.

I grinned as Sarah, Gary and my boss Nicki came and crouched next to me. I held my phone out in front of us and we all pulled excited faces as I snapped the picture. "Wait, I look goofy on that one," Sarah frowned.

"And I look gay," Gary protested.

"You are gay," Sarah and I said in unison, then laughed.

"I'm sending it," I said, and quickly pressed send. "And we love you, Gary, even if you are in the closet."

It was a few minutes before the response came back:

From: Harry Styles: You're beautiful x

I fired one straight back.

To: Harry Styles: Flirt x

From: Harry Styles: You don't give an inch do you! x

To: Harry Styles: Sometimes ;) x

From: Harry Styles: Now who's flirting? x

To: Harry Styles: Not me #littlewhitelies x

(It took me a minute to pluck up the courage to send that one).

From: Harry Styles: Not much! I thought of you when we sang that tonight x

My entire body flushed.

To: Harry Styles: Shut up, no you didn't x

From: Harry Styles: I did. Think it's my new favourite x

To: Harry Styles: It's been my favourite since I saw you live last year x

From: Harry Styles: You have excellent taste x

To: Harry Styles: You would say that ;) x

From: Harry Styles: Why's that? x

To: Harry Styles: You know why. Don't make me say it x

From: Harry Styles: Say what? x

To: Harry Styles: YOU KNOW WHAT x

From: Harry Styles: I really don't?! x

I was having way too much fun with this.

To: Harry Styles: OK FINE!

To: Harry Styles: You're my second favourite member of One Direction x

There was a pause of about 10 minutes before the reply came through.

From: Harry Styles: You're evil x

To: Harry Styles: #unpopularopinion x

From: Harry Styles: I'm actually bleeding here from these wounds x

To: Harry Styles: Wait for it.... You're insecure? Don't know what for... HAHA! x

From: Harry Styles: I just laughed out loud at that x

To: Harry Styles: I'm still laughing now x

I really was still chuckling quietly at my desk. Probably more out of giddiness that I'd made him laugh, rather than actually finding the crap joke funny.

I glanced at the clock on my laptop and realised it was 16.55.

To: Harry Styles: I have to go. I've done nothing but text you for the past hour so my boss will kill me, and now it's hometime x

From: Harry Styles: Shame, I'm just about to shower and get into bed. Was hoping to continue this for a bit longer x

To: Harry Styles: I get no network on the tube. Some other time maybe x

From: Harry Styles: I hope so x

I put my phone away, grabbed my coat and bag and walked out of the office. I didn't text Harry back after that, but went for a quick drink in the pub with Gary and Sarah before I got on the tube. Gary was down in the dumps over his girlfriend problems and wanted to drown his sorrows, so Sarah and I offered some words of wisdom.

I kept my eye on Twitter and the Daily Mail over the next couple of days, but as One Direction's next concert wasn't until Saturday there wasn't really much to report. There were several pictures of the members of the band on Twitter with fans, and I couldn't help wonder if any of them had ended up in the boys' hotel rooms. I tried not to think about it too much, but Harry was in and out of my thoughts for most of the day, every day.

By the time Saturday came round I was looking forward to catching up with my brother over lunch. It was a beautiful day, so I put on a nice top, leggings and heels, threw a pair of sunglasses on and enjoyed a leisurely walk to the station. I caught the tube to Leicester Square and decided to walk to Covent Garden instead of bothering to change tube lines. I sauntered along towards the cafe where I was meeting Calvin, and caught sight of him sitting at a small table outside in the sunshine, eyeing up a girl at the next table. I rolled my eyes. Calvin never wasted an opportunity to chat up a member of the opposite sex. He made Harry Styles look like an awkward teenage boy.

"Put your tongue back in," I called once I was close enough to hear me, and he turned and looked in my direction, then stood up and held his arms out to me.

"Here she is, the main lady in my life," he said.

"Yeah right," I said. I pulled him into a hug and he kissed me on the cheek. "How are you?"

"Good thanks, little sis. But not as good as you seem to have been. How's Harry Styles?!"

I rolled my eyes as I sat down. "Do we have to talk about that?"

"The whole country is talking about that," Calvin said.

"That's a slight exaggeration," I said, as the waitress came over with some menus for us.

I ordered a glass of Prosecco and Calvin ordered a beer, and after the waitress had disappeared I told Calvin briefly how I had met Harry. Obviously I left out the best bits - he is my brother after all. He didn't want or need to know the gory details. We ordered our lunch when the waitress returned, and as she walked away back to the kitchen Calvin gave her backside an appreciative glance. I kicked him under the table.

"So let me get this straight," Calvin said. "This pretty-boy pop star pulled my sister and is now off poncing around on a stage with his mates making 12 year old girls go crazy?"

"I wouldn't put it quite like that," I argued.

"Sounds like a twat," Calvin declared.

"Calvin!" I scolded. "You don't even know him. And we are just friends. I'm a big girl and I can take care of myself."

"Jess, come on. You love One Direction more than Maddie does. It's embarrassing."

"Well thanks for the vote of confidence," I snapped.

"I just mean your judgement is bound to be a bit clouded. You worship the ground this guy walks on."

"I wouldn't put it quite like that," I said again. "It's different now we're, uh, acquainted."

Calvin grimaced. "OK, don't say any more." He took a swig of his beer.

"I just mean I don't look at him in the same way now," I said. "It's completely different meeting him in real life. He's actually a really nice guy."

"For fuck's sake Jess, you're not falling for him are you?" Calvin scoffed.

"I've met him three times," I said. "Give me some credit."

"I'll break his legs if he hurts you."

"I'll be sure to pass that on," I grinned. "If it does end up going any further. Which it probably won't."

"I mean it. Celebrity or not, he'll be sorry."

"Yeah good luck getting near him with his security," I teased. "And stay off Twitter. I don't want any more media attention."

Calvin grunted, and our meals arrived.

"We should visit Mum and Dad one weekend soon," he said as we began to eat. "Mum keeps on at me to come up."

"Yeah, she keeps asking me too," I said. "It's been ages since we were all together."

My parents live in Cambridge, which isn't far from London, so I have no excuse for not going up to see them and my little sister Maddie.

We stayed in the cafe all afternoon, catching up. It was really nice to forget everything that had been going on over the last couple of weeks, and just hang out with my idiotic brother. We paid the bill about 5pm, and walked back to Leicester Square tube station together. Calvin gave me a huge hug and a kiss on the cheek, then sauntered off to catch his train, while I went down to my platform to take me back to Belsize Park. I spent the evening draped over the sofa channel surfing, and wasted most of Sunday in the same way.

I woke up on Monday morning to a text from Callie.

From: Callie: Have you seen the pictures of you and Calvin online? Apparently you're cheating on Harry Styles! Lol xxx

I rubbed my eyes in confusion, and clicked on the link she'd sent in the text.

Heartbreak for Harry Styles

It was only last week Harry Styles was seen cosying up to his new flame Jessica Bradshaw before he jetted off with the One Direction boys to continue their Asian leg of the On The Road Again tour. But it seems Jessica isn't quite feeling the love yet. She was pictured on Saturday afternoon enjoying a lunch date with a handsome male companion, who was hanging on every word she said. After spending several hours together at a restaurant in Covent Garden, Jessica and her hot date walked up to Leicester Square and shared a passionate embrace, before he gave her a loving kiss on the cheek and they both headed off on the tube. With Harry Styles several thousand miles away, it seems as if out of sight really is out of mind. Never mind Hazza, there are several million girls waiting to dry your tears. Form an orderly queue, ladies...

I stared, open-mouthed, at the pictures of me and Calvin sitting outside at the cafe, laughing and smiling. There was a picture of us walking towards the tube side by side, and the way the photo was taken it looked as though we were holding hands. And of course, there was a picture of us hugging, and of Calvin planting a kiss on my cheek.

I shook my head in disbelief. I couldn't believe this complete non-story had been turned into an episode of infidelity. Harry and I weren't even a couple, yet the press had decided we were, then decided I was cheating, and concluded Harry must be heartbroken!

I opened up Twitter and saw I had several hundred mentions.

@styles_baby1: who in their right mind cheats on @Harry_Styles ? Oh yeah, that would be @jessie_braddy

@hayleystylessss: @jessie_braddy you slut cheating on @Harry_Styles

@yellowsnow1xx: @jessie_braddy who's the fitty?? Massive improvement.

@likeafilmstar: @Harry_Styles are you OK no thanks to @jessie_braddy xxx

I closed Twitter and threw my phone on the floor in frustration. When was this shit going to end?

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