I NEVER want to have sex

Really, never. I’m 20, healthy weight, on the pill, live with my boyfriend of almost 2 years who I love very much and I’m very attracted to. But we never have sex or do anything anymore pretty much cause I never want to. And I feel bad because it’s been like this for months, and I want to want to because I want to make him happy and I know being intimate is an important part of a relationship. Everything else between us is going so well, and we don’t argue about not having sex, I just really want to overcome this for both of us