I’m at a breaking point honestly

Every time we argue he says I’m gonna cheat on you , call me a bitch , hoe , say how I don’t have Anything ( I’m 19 , I’m a college student and work ) ( hes 29 with 6 kids ) , he’s absuive as well. & every time we argue it’s “ his house “ even though we kinda moved in together , his name is the only one on the lease ( he had found this , & didn’t know I was moving in so yeah ).. I’m kinda just overwhelmed , & don’t know what to do. He said he’s sorry and wants to treat me better and a be a good men but I don’t see it happening. I just talked to him yesterday about how I’m tired of arguing & small arguments leading until physical abuse and also disrespecting me.. yesterday after that conversation he asked me find the lightbill paper I said not now in 5 minutes let me relax , he got mad . Tried to get physical and said I swear to god I’m gonna cheat on you , called me a hoe , a bitch , said I don’t know how to do nothing. I’m 19 , I’m learning. I’ve never had to deal with lightbill people or keep up with stuff . Idk I’m confused honestly & talking to him does SHIT . & this is not even the half of the bull shit I deal with.