Is this the beginning of the end?

I don't know if it's because I woke up in pain or if my husband really is an ass. We have 2 kids together 1 and 5. My 5 year old said something today and my husband said "look what you made" I said "I worked really hard to make him for 9 months" my husband always has to take the credit for "making" the babies so he did it again today. It makes me feel like he down plays the fact I spend a good part of a year miserable to have these beautiful boys. I told him he's not allowed to make those kind of jokes anymore if he has never once given me praise for bringing these boys into the world. He said "no, you were a bitch the whole pregnancy" YES BECAUSE I HAD NEVER BEEN SO MISERABLE and I did it TWICE! I swear if he makes that joke again I'm walking. He doesn't sleep with me anymore. Only comes to bed when he wants some then he goes back to the couch. My back is killing me and I'm the one spending the weekend cleaning and cooking while he sits on the couch. At this moment in time, I just want to leave. Like I said Idk if it's the back pain talking today but I know my anxiety has been high and I just need support from my husband and he's just not there for me. How long do you feel this way before you actually act on it. I don't feel like my feelings matter. I don't feel like he sees me as a good mom or wife and it's hard to try and be one when we're more like room mates that husband and wife. I want affection for more than when he's horny. I don't know what the next step here is, I don't want to keep going through this. I'll get a roommate at least I won't have to do their laundry