Help meee

I moved in with my babies dad and it’s been nothing but hell. He’s cheated on me left and right with 1737 different females, put his hands on me, and lies ALL OF THE TIME. He is a GREAT father tho. He is here for his son, buys him whatever, and just loves him so much. I want to move back to my parents place (4 hrs away from here) but every time I’m about to what stops me is the fact I want my son to have his dad in his life so bad. It’d hurt his dad so much if I take him away from him. I’m so stuck I have no idea what to do.