Always calling me a broke bum bitch

Every time me and my baby father gets into an argument he calls me a broke bum bitch, powder head (I snorted coke in my younger days), and a whore! It hurts my feelings tremendously, why he do this to me? I’m starting to think maybe I should just leave . He also texts my mom when we’re into it and tells her I’m “selling pussy” and I’m ABSOLUTELY NOT! I live with him and home 24/7 with the kids! I find that to be awfully disrespectful. If I leave I have no where to go! I’m just stuck right now and getting really low self esteem on top of depression.