Dick Deprived

I've been with my boyfriend for a little over a year and at first we would have sex every single time we saw each other (which was probably three or so times a week). I have a MUCH higher libido than he does, so I ALWAYS initiate sex. Well over time we've had sex less and less often, and every time we choose not to its because *he's* not in the mood. We live together now and we have sex MAYBE once a week. Like, I get it. Sometimes he's too tired or his depression is worse or he's just not feeling it but it makes me feel like it's my fault. Like, if I was sexier maybe he'd be turned on once in a while. He's said several times that in past relationships his girlfriends haven't been able to keep up with his libido, but somehow he's unable to keep up with mine. Well that just makes me think "Was he more sexually active with those other women because he was more attracted to them?" What am I doing wrong? Why am I the only person who wants sex? Why doesn't my body deserve some attention once in a while? I'm not fucking disgusting.