Bad Relationship Struggles

Since our baby has been born (he's about to turn 3 months old) my fiancé and I have been fighting on and off. The fights get so bad were we scream at each other and almost every time we fight he breaks up with me and we get back together the next day. We don't live together. He doesn't have his own place (lives with his sister) and doesn't even have his own vehicle. We live about 24 miles apart. I don't have the gas money to go see him every single day. I maybe make $100 a week for both me and my baby. He won't buy our baby anything unless I ask him to. He wants me to move in with him so bad and has even tried to force this on me by taken my son from me when we visit and not letting me hold until he's hungry so I can feed him. Has even blocked the door so I can't run out to my car and leave. He's also said that if I don't move in with him he is going to do everything in his power to take my son away from me in court. I don't want to move in with him because he's been so controlling and when we fight he yells and cusses at me and talks down to me like I'm a dog. Ever since our baby has been born he has gotten very controlling! For example, I had a name picked out for him that I loved so much and he wouldn't compromise in any type of way. The baby had to be named after him and he couldn't be circumcised. Apparently that's "family tradition"! But what about my wants? I haven't really had one say in anything. He got extremely mad and stopped talking to me after I secretly had him circumcised 24 hours after he was born. Signed the papers while he was asleep. I want me and him to be together but I dont know how to get him to just compromise with me on thing. I love him with all my heart and he tells everyday that with me not moving in that shows that I don't love him. Our relationship is failing terribly and he thinks the only way to fix it is by me moving in with him. Any advice on this would be extremely helpful! I don't know what to do anymore...