So my girlfriend is depressed and I've always known that. We've been dating for a year and a half and the first year she was very sexual, always wanting to do stuff. however, the past couple months she's lost her sex drive. we only end up doing stuff once every two or three weeks, no sex ever though. I really love her, but it's just so hard to be in a relationship in which my girlfriend only feels attracted to me once in 3 weeks. she can't control it though, it's the side effects of medication. I don't know what to do, I want to stay with her, but it's just so frustrating.