You and Matt have been friends for 5 years, since the tropicana demolition. The tropicanas demolition changed you and him, eventually when you both got powers and got reincarnated, things changed. You're powers were stronger, but his suddenly were alot stronger than your's.

You and him were arguing in the car about Gambler Mark. Matt didn't wanna hurt him while you did. You trusted Matt, and now he's taking Mark's side and betraying you. You didn't care if Matt's powers were stronger and more capable to hurt you. you needed to let it out.