Going Crazy

My boyfriend started the grad program this year. We've been together a little over a year and we haven't had sex in over two months. Honestly I don't remember the last time we did. I talk to him about it and he says he doesn't know what to tell me. He just doesn't feel like it. I struggle with an ED and Bipolar so of course I think that it's my body or my illness because I have been spiraling into depression and this is just making it worse. I've been crying since last night and I don't know what to do. Am I being dramatic? This feels like a huge thing to me. I don't feel close to him at all.