am I right to decide this

my SO has not been here for me basically my whole pregnancy, he works away but usually he will tell me he does bc he can't stand to be around me he's not even home when he's not working he will find "jobs" to do or has to go out with friends while I'm home alone. he has been fighting degrading me and cussing me almost non-stop since I got pregnant. I have found him on various hook-up sites looking for "fun😉" or wanting to go out for drinks with other women, idk how far any of it went but I have my suspicions. he has also told me various times the babys not his and we will be getting blood tests if they don't come out with his hair color. so anyway every name I have picked that I like he hates for some reason either it's " a whores name" or something along those lines. he picked names and said that's what we are going with but I don't like them they are common and I just can't see myself calling my future children those names. I have a one year old whom I've been taking care of other than financially by myself for his entire first year which is very frustrating so I know he's not gonna be here to help this time either he's even said he's going to be away working even when he's not working he is not home anyway last night he brought up his name that I hate and I made a face and he started arguing with me and I told him I'm not using that name he basically said if I don't let him he won't be I. the labor with me I said fine I don't need anyone in there. so with all this info is it right of me to decide the names myself? we aren't married and the way things are going I'm not sure I even want to stay with him