Advice please

I have come to the realization that I no longer love my partner. When I fell pregnant with my third baby he told me that I had to get an abortion. I don't personally feel I could ever have an abortion so I told him I would be keeping the baby and he could have whatever involvement he wanted. I wasn't sure if he would leave or not but I knew that I would never forgive myself if I didn't keep the baby. We stayed together but he would constantly tell me that he didn't want the baby and after my first midwife appointment and everything was okay he said he was disappointed and that he hoped I'd had a chemical pregnancy. If this had been our first baby I would have left him right then and there but we have two boys and I didn't want to break up the family. He spent the entire pregnancy telling me how he wasnt excited about the baby and he wished I wasn't pregnant. Then I lost the baby, I was far enough along that I had to give birth. My partner only came to the birth because his mother called him and told him to come. The whole thing was pretty traumatic and he is acting like the baby never existed and thinks things can go back to before. Every time I look at him I see the man who didn't want our baby and I've realised I can never forgive him for that. He won't even entertain the idea of counceling. I want to leave but I feel like co-parenting with him will be a nightmare as he has never done any stuff with the kids IE nappy changes, bath time, bed time routine. he doesn't know what their favourite cerial is. He doesn't know what size diaper. He really does the bare minimum.