You and him are dating until you found out he has been kissing many girls behind your back so you got your pay back but he is angry about it

Steve: you were cheating on me? he says in a very annoyed and angry voice, grabs you by the collar of your shirt so that he has you trapped in his arms and a wall and starts to kiss you

Note: he saw you kissing Billy and he got very angry and jealous so he dragged you in his room