Haven’t had sex with my husband in 2 years!

Idk what to do. I haven’t had sex with my husband in 2 years since we conceived our now 1 year old. I have no want or need to have it whatsoever. I have PCOS not sure if that’s why but I just don’t want to do it. He always asks and I always say no. I just can’t get myself to do it. What do I do? I feel so lost. Its like do I part ways with him so he can be happy with someone else that will give it to him becuase I know we won’t be able to continue like this much longer. I love him but I just don’t want to have sex and Idk why. Please help