Delta like wad said it's not like this. I think I'm in a really similar situation to his boyfriend. I have a girlfriend and I, too, used LSD and got some weird fucking mental problem that's fucking my life. I don't know if it's the same problem, but, because of MY mistake my girlfriend is having to suffer because his boyfriend from a moment to another turned into a sluggish retard with no libido. I think the difference is that I will never ever even think in touching another drug again. But her boyfriend managed to get better, something I don't know if I will. So maybe maybe Wad's situation is even better than my girlfriend's and yet my girlfriend didn't leave me, because she knows I love her, because she knows that, besides that BIG mistake, I am a good person, and that I'll do anything to become my old self again, for her.
Things are not so simple when there's love involved.
Hoping the best for you and your bf, Wad.
Peace.