18 weeks today and very disappointed

Today I am 18 weeks exactly, and I've always wanted to be a mom and have a baby. I love my baby so much already, but I'm very disappointed that as time goes on I'm falling deeper and deeper out of love with my long time bf of 10 years. He has been nothing but rude to me ever since we found out that I am pregnant. He never asks me anything about the baby if I'm tired or worn out and want to rest he complains and calls me lazy. I cant help but to think that this is how the rest of my life will be and I dont want my baby to grow up in a family were mommy and daddy dont love each other. I think of leaving him often these past couple months but it would be so hard due to the fact we live together and all of my family lives so far away. I just dont know what to do anymore.