Love Triangle

Person A, Person B and Person C are actors and they play the most infuriating love triangle on TV. What their fans don't know is that it's not any better in real life.

Person A and Person B are both in a relationship with Person C without knowing about the other one. When they find out that they've both been cheated on by Person C, they team up to exact revenge on them.

Person A likes both Person B and Person C, but believes that they like each other and wants to be a good friend and sets them up with each other. But they actually don't like each other, they both actually like Person A.

Person A loves Person B and is so jealous that Person B seems to be in love with Person C, that they don't realize that Person C has a crush on them. It's the perfect triangle.

Person A and Person B both have a crush on Person C, but they soon realize that neither one of them have a chance, so they bond over that fact.

Person A and Person B have what can only be described as a love-hate relationship and Person C always has to be the mediator in their relationship.

Person A likes both Person B and Person C, but they now demand a decision from Person A.

Person A's and Person B's relationship was always of a very competitive nature, so when Person C comes around, they compete against each other to win Person C's affection.

Person A and Person B like each other. Everyone knows that. But when Person B just never acts on it,

Person C convinces Person A to let them go and move on with Person C.
Everyone told Person A that chickening out of the decision-making, by not choosing one them, was the easy way out. But it definitely wasn't.

Enemies to Lovers

"Well. well, well. Look who came to their enemy's door holding presents." "Oh cut it, I'm here to pick you up for our date."

"I'm scared that it could end badly if it doesn't work out." "You're already enemies. How worse could it get?"

"Why did you save me?" "Just because I'm the bad guy doesn't mean I'm a bad guy."

"I can't tell them. They would make fun of me! We used to hate each other!" "Used to - that's the important part."

"I can't really remember what we were fighting about all this time."

"That guy is not good for you. Hell, even I would be better for you and I'm your enemy."

"No one will believe us when we turn up together."

"You know I love to shock people, so this will be great."

"This seems like such a bad decision, but I just can't help it."

"You like me?" "I know, it's hard to believe, I can't really believe it myself."

"I tried to deny it for so long, but I don't want to anymore."

"You already know the worst about me and I about you. If we can get over our past, we could have a good future."

Best Friends to Lovers

Casually saying I love you until they start to fall in love and become afraid to say it.

Going as each other's plus ones to everything because it's easy, but they never even try to get actual dates.

Sharing beds and cuddling because it's always been normal to them but it suddenly makes them get butterflies.

Casually affectionate in general

Stealing glances at each other but just laughing it off when they notice.

Being too afraid to tell each other in fear of losing them because of it.

Once they find out: person A  just wanting to stay friends because they're afraid of losing person B vs. person B believing it's worth it because of how much they love person A

Tons of inside jokes that only they understand

Wearing each other's clothes when they forgot to bring a change of clothes.

Making each other laugh more than usual

Being completely oblivious of each other and themselves.

Literally everyone around them knowing except for them.

Person B getting jealous whenever person A flirts with someone but claiming it's because they don't want to sacrifice some of their friendship to person A's new partner

"Are you guys dating?" "WHAT no we're best FRIENDS we could never date ew haha"
Knowing everything about each other, including their lying tells.

Also including all kinds of medical things (bonus points if they have to use this knowledge to save them from something)

Knowing that person A hiding something, but having no idea that it's that person B likes them.

Always talking about them in the fondest way before catching themselves and blushing.

Staying up all night talking/staring up at the stars and slowly holding each other's hands.

Bickering like usual except it turns into a conversation of everything they love about each other.

Talking late at night and person A smiles that stupid adorable smile and person B accidentally kisses them. Awkward shocked conversation ensues.
Everyone saying "I knew it!" when they start dating

Kissing and other couple things are weird at first because they've been friends for so long.

Getting in a fight and being scared of losing each other but getting over it just like how they did when they were just friends.

Arranged Marriage AU

1. Royalty~ Person A and Person B are both princes/princess of neighboring kingdoms. Their family's are close so their marriage was arranged since they were born

2. Modern~ Person A's family is in debt. Person B is the debt collector but asks for marriage instead

3. Dystopian~ In a society that chooses who your spouse is, Person A and Person B are matched as soon as they reach adulthood

4. Bought~ In a society where your wealth is everything, even your marriage. Person A buys Person B- or places the highest bid

5. Arranged~ Person A is royalty and has to wed. They choose Person B, and B is not happy about it

6. Foreign~ Person A and B have been arranged to marry to keep peace between their lands. Too bad Person B can't understand a lick of what their fiancé has to say