Bf doesn’t want to have sex with me

My bf and I have been together for a year and at the beginning or our relationship we had LOTS of sex like everyday but then it slowed down and now we hardly ever have sex. We haven’t had sex in about two weeks and it makes me feel horrible. I try to initiate it but he says that he doesn’t feel like it. And recently when we have had sex he is getting soft during. I don’t understand what’s going on because we used you have great sex. He is very affectionate and cuddles and kissed but refused sex. It’s getting to the point where I’m thinking if I want to be in a relationship with him if it’s going to be like this for the rest of our lives. But I love him so much and we just click.

I have talked to him about so many times and cry to him about it but it just seems to make him mad that I keep bringing it up what do I do?