Is this my fault?

so I've been dating this guy for 5 months and we broke up a few days ago. the break up was over how controlling and emotionally abusive he is.

we're seniors in highschool and there's this one time that he got mad at me for going to the bathroom without letting him know bc his ex used to do that just to hook up with other guys. I understood why it bothered him n I let it go. there was also another time when he didn't want me going to an all girls party so he was like "I've done so much for you and I can do so much to you good and bad" he claims that it isn't a threat bc he said 'can' instead of 'will'

my friends told me how bad he is for me and so I finally grew a pair and broke up with him. He's still trying to get back together with me and he's trying to guilt me. what do I do?