How to bring love back??

He's a perfect boyfriend and he does everything for me and more. 

The only problem that we have is sex. At the beginning we had sex A LOT. He never made me cum btw. He tried different ways but it just doesn't work. Then, I started getting hurt from sex for some reason (my vagina would burn and bleed from sex). Because of constant pain for many months, I just stopped liking sex. I tried to avoid it as much as I can by giving excuses. He started getting annoyed by it as well even though he understands that it's not my fault. He wants sex almost everyday and I can't give it to him cuz I hate it.,The time goes by and I can't even take any touch from him, even though I craved it before. Cuz I always think like it'll end up with sex. In a last month I don't wanna even kiss, I don't laugh at his jokes, I don't wanna even talk to him. 

I don't understand what is the reason. Is it sex? I don't know. We've always been perfect for each other. We've never had major arguments, we always agreed at everything. How could the love be gone in a month?

 

How can I bring love back?? I need a solid advice, please...