I think my bfs emotionally abusing me..

Hey guys so im 16 with a 1 and a half year old daughter. So let me begin from the start. At the end of my pregnancy i decided to finally move on. My ex seemed sweet but wasnt. He raped me only a few days after i had a c section and he constantly abused but fast foward after a while i finally moved on again. At first things were going well he helped me with my daughter he was there for her birthday and ended up moving in my mums house due to being homeless so my mum agreed to let him move in. He found out about three months into the relationship that he had bi polar. My bfs 21 so i thought hed be very mature he smoked pot every now and then but not often. Then this is where things changed. We moved into my older sisters house with her partner her two kids and there frend. Due to personal reasons my mum has my daughter most of the time at the moment. So without my daughter most of the time i thought that meant things might get better...it didnt it got worse. My bf started smoking alot. Everyday and went off his meds. He started getting angrier without weed. Then hes started calling me names. He calls me a bitch he calls me weak when i ask for help with my daughter and yells at me all the time then if i try breakup he says hell get back on ice or kill himself. I recently found out yesterday he was talking shit about my mum so i told her and now she wants nothing to do with him and on top of that i think he has the hots for my sister he always helps her and treats her kids like his own idk if this is emotional abuse or not he knows what my ex did to and i suffer from autism so when he yells it triggers me to have fits...