Alright so this idea popped into my head. It's really awful but I needed to get this out as soon as I could. 

Warning: It's like, pretty angsty.

....

An incident occurred several weeks ago. You got caught up in it and it gave you the ability to manipulate electricity. The crime boss known as Kingpin tried to capture you and use your abilities for his own work. Your mother tried to save you from him.

You managed to get away.

But Kingpin and his men killed her.

The loss of your mother broke you. Your father had already passed away years ago. Now the loss of both parents hurt so much that you managed to cry long after your mother's funeral. You were alone and scared. And it was all because of them.

After that you swore revenge on Kingpin and every single person who worked for him. You blew up buildings. You attacked them in their homes. You used your powers to get revenge. 

Newspapers and online media referred to you as a Menace.

The attacks and explosions you caused hurt innocent people along the way. But you didn't care. Kingpin and his goons haven't even gotten half of what they deserved.

Spider-Man has been getting in your way since then.  Most of the time he would stop your plans and save the people you were trying to hurt, but he never managed to catch you.

....

Peter was exhausted. Last night's battle with the villain Menace left him sore almost everywhere. His eye still stung from one particular hit.

He didn't know how he was going to defeat this new villain. She almost managed to kill four people last night. All but one worked for Kingpin. Menace seemed to only go after Kingpin and people that worked for him, but she didn't seem to mind harming innocent bystanders along the way. 

The police were after her, too. They wanted her off the streets, dead or alive. 

She needed to be stopped.

"Peter?"

His head shot up. "Hmm?"

"You almost dozed off into your mashed potatoes," You said. "Are you okay?"

Peter glanced down at his lunch tray. He'd been so caught up in his thoughts that he wasn't paying attention to anything in front of him. Not even Ned's story about how he almost broke his TV playing video games.

"Yeah, yeah. I'm fine. I'm just...I'm just tired."

He stabbed into his food, playing around with it.

"How did you get that black eye?"

He froze. "Um....I fell."

You gave him a look. "Must've been one nasty fall." 

"Yeah," he said, forcing a chuckle.

Peter was definitely lying. A fall could not have made a bruise like that.

"Hey, (Y/N), did you finish your paper for English? You said you were struggling with it earlier," Ned said. "I could help if you want. Want me to review it for you?"

"Yeah, it's—" You looked to your side and didn't see your backpack anywhere. "Oh, shoot. I forgot my backpack in the science lab. I'll be right back."

You were about to stand up when Peter spoke. "Here, I'll get it for you."

"Oh," you said, shocked. "Um, thanks, Pete."

"Yeah, no problem," he said. He got up and left for your backpack.

He made his way to the science lab. The room was dark inside. He turned on the lights and began to search. After a couple minutes, he found your backpack under one of the desks. 

He picked it up and was about to leave, when something caught his eye. The zipper wasn't zipped all the way and a familiar blue and black mask was peeking through. Eyebrows furrowing, he took it out and gasped when he realized what he was holding.

It couldn't be, could it?

In his hands was Menace's mask. 

The same Menace he's been trying to stop over the last few weeks.

He found Menace's mask in your backpack.

But then that meant—

"Peter?"

His head whipped around to see you in the doorway. 

"I didn't know if you were able to find it so I came to help...." Your eyes wandered down and saw him holding your mask. "....you."

Your heart skipped. Peter stood in front of you with your mask in his hands with the most horrified look on his face. You started shaking, feeling electricity already start to tingle in your hands.

And he saw it.

"You're Menace."

"I can explain—"

"You're the one who's been blowing up buildings....killing people. Innocent people." His eyes were starting to water. 

All this time, it was you who caused this destruction. You who murdered and destroyed. It was you he had been trying to stop all along. 

"They're not innocent," you said. "They killed my mom."

"Kingpin's men? Or the innocent people you murdered in the process?"

"Peter, you don't understand. Kingpin, these people, they tried to take me away when they realized I had these powers. My mom tried to save me from them, but they killed her. She died saving me and they deserve every bit of pain for what they've done." Fists clenched as you look Peter in the eye, not caring if he was afraid of you.

And he was afraid. But not of you. 

"(Y/N), I get it. I know what it's like to lose someone you love. And I know Kingpin is a criminal, but this isn't right. Getting revenge won't make you happy." He took your hand. "The police are after you. They don't care if they catch you dead or alive. You're putting yourself in danger by causing all this, this chaos."

You looked down at his hand holding yours. You could feel him shaking.

"Look, I can help you. I can ask May to let you stay with us for a little while. I can help you with your powers. You don't have to deal with this alone," Peter said, making your eyes lock on his. "Just promise me you'll stop."

He seemed so frightened. 

He cared so much for you. Knowing that you were responsible for all the destruction scared him. You didn't want him to feel so afraid. And help seemed so comforting.

But was it enough for you to quit your revenge on Kingpin?

"I promise."

He sighed in relief and pulled you into a hug, unaware of your fingers crossing behind your back.

....

You stood on the rooftop of a building you knew Kingpin managed. It was full of people. People who worked for him.

People who deserved to die.

The late nights were usually when his employees worked the hardest, being criminals and all. The perfect time to strike. 

Yes, you did promise to Peter that you wouldn't do this anymore, but he couldn't change your mind. These people deserved this. They deserved every explosion and electricity blast you had planned. 

Kingpin has done some awful things in the past, but nothing compared to the crime he committed against you. 

"For mom," you whispered. 

You placed your hands on the power box and overloaded it with electricity, causing it to explode. The whole building—and a few apartments nearby—went pitch black. 

Bombs you planted around the building were set to go off in five minutes. Enough time for you to step inside and surprise a few people. 

Opening the roof door, you slipped inside. Electricity uncontrollably flickered from your hands, lighting the room just enough for you to see a group of confused workers trying to turn the power back on. You shot out an electric blast towards them. They fell backwards as the bright blue bolts shocked them. 

Revenge felt good.

You were about to keep wandering the building when you heard a familiar, "(Y/N)!"

A string of web attached itself to your arm. Before you knew it, you were carried out of the building right before the bombs went off. Fiery hot blasts of oranges and reds and yellows exploded in your face. 

You were up in the air and you could see the building you were in in flames and there were chunks of it flying everywhere. 

You were too caught up in hurting more people by hand that you forgot about the bombs.

Whoever was carrying you in the air dropped you onto another building that wouldn't be damaged by the explosion. It was close enough to still be able to see what you did.

Breathing heavily, you got up and took off your mask. It looked almost toasted from both your powers and the explosions.

"You promised!"

You looked towards the voice.

Spider-Man.

How would he know about the promise?

Unless...

"P-peter?" you asked.

Spider-Man approached you. He ripped off his mask and threw it on the ground. The look on his face made your heart break.

"How could you? You promised you would stop, but you did it again," he said. "You blew up another building, killed even more people....you even almost killed yourself. How could you?"

You scowled. "How could I? How could they?!" You pointed to the ruined and still burning building. "They're the ones who deserve this. They need to pay after what they did to my mom!"

"(Y/N), stop! You're not thinking straight! They didn't do anything. Not every single person in that building—in any of the buildings you've blown up—is responsible for your mother's death."

"I don't care!"

"Agh, that's so reckless! Don't you see what you've done?!" Peter grabbed you by your shoulders and spun you around to look at the damage and fire and rubble in front of you. "Is this what your mom would have wanted?"

Firetrucks and ambulances were rushing to the scene. People looking burnt were being carried off on gurneys. A few police cars arrived on the scene as well. You knew they were looking for you. After this you would definitely be sent to prison. Or worse. 

Worst of all,  nearby apartment buildings got caught up in the explosion. Families lived in them. Mothers and daughters. 

You could see a mother crying for her daughter.

Everything in front of you was your doing. 

There was so much destruction. 

Is this what mom would have wanted?

You broke down in tears. You collapsed onto your knees and held your hands to your face.

What have you done? 

This was all your fault. You let the anger consume you and now everyone else had to pay for it. You deserved to be put in jail. You deserved worse. 

Peter kneeled down and wrapped his arms around you. You buried your face into his chest, too ashamed to look at him. 

"It's going to be okay," he said. "I know how you feel and I'm sorry for letting you suffer like this. Just please don't do this anymore."

You could only sob in response. 

"I'll ask May to let you borrow the guest bedroom tonight. Then in the morning, we'll sort everything out. Okay?" 

You sniffled. "You should just hand me over to the cops."

There was no coming back from this. Why did you do this? 

"No, I'm not going to do that to you. I won't let them take you. We'll work this out, okay?" he said.

Another sniffle from you.

"You're going to be okay."