Does my boyfriend really want me or is he just settling?

I have been with my boyfriend for 12yrs now and am pregnant with his fourth child, we have been through a lot, he has put me through a lot and yet I have still stood by him hoping that maybe one day he will give me the love and respect I deserve. For the last couple of years I ave been feeling like the spare part. He constantly talks about other girls even though he says he is joking, but has compared me to exes, he has tons of pics of girls and I caught him playing with himself over pics of other girls on our 12th anniversary in my kitchen! And the funny thing is I made and gave him nude pics and footage of me but he has never used it from what he told me and also told me he does not fantasize about me but has no problems fantasizing about other girls. He even fought with me to keep all those pics over me. He leaves me at home most days and nights by myself of the week every week and its like I have to remind him am here but if its to go and be with friends you don’t need to tell him twice. I don’t even feel like I appeal to him unless am doing certain sexual favors. What am I supposed to think or feel about this? Can someone help me out with this dilemma?