Red flag???

Hey mom I’m a single mom and I’m dating someone and who has an drug problems…we had a fight recently and he started getting rlly pissed off and slamming the door but he didn’t hit me or shout at me he just seem really angry and I have been trying to change him..he started hitting himself and crying and screaming I got really scared because my previous rs with the baby father he hit me…I’m not sure if I shoujd leave. And it’s affecting my mental health but I want my baby to be safe and I do set boundaries with him and my baby.