Rant warning. I just need a safe spot to put my feelings...

My daughter is 7. My son is 1. I've been with my current man since August 2018. Over the years I've done much for him and our family ( not saying he hasn't) I've cleaned and made non expensive surprises for him with maybe only a thank you...when he found out that we were having our first kid together there was no excitement. Fast-forward to the last few months...I've felt like the kids are MY full responsibility as well as all the house chores for the most part. I get up with this kids in the morning and I put them to bed. I get up with them in the night and tend to them when they are sick...we come home from work I'm stuck with the kids....my daughter has been asking if/why I'm not married and it hurts so bad that I have to tell her I dont know and to go ask dad..she won't ask him...I've told him about this and he has little to no response. I've asked flat out a few years ago if it was going to be a thing and he said yes someday. There's so much more but now.... All I feel like doing is crying because I feel so strong that I'm not the one he wants to spend his life with. The last 2 summers he said he was going to put a storm door on our house and fix our steps coming into the house and nothing's happening...I can't win..I'm stuck... The only snuggles I get are from the kids when they are sick or my son when it's time for bed ... The closest friend I have is my mom and she is a busy lady...I don't feel like a gf.. I feel like a mom n a maid