Leave him, he’s clearly not over her, and you felt so stressed by this situation that you actually attacked this woman. It’s not the first time she’s stalked the both of you, so it very much is your business and concerns your own well-being.

Why any guy would prioritise the safety of his stalker over his current gf is beyond me. He should’ve been mad at you for getting violent, but ghosting you? Refusing to block her? Does he even like you???

You deserve better girl, someone who’s actually worth fighting for is someone who will fight for you. Of course, I don’t mean literally fighting someone, since that was dumb and could’ve put you in physical danger (or danger of getting arrested).