I don't think it's about a gay man at all. I think it's for a guy who didn't fit in with her friends or didn't feel like he fit in with her and her friends, and tried and failed, and even though she loved him, she has to let him go rather than see him ruin himself by trying to copy somebody. (Maybe it's about a drunk or a drug addict losing a lover before he descends into addiction.)
I don't think it's about a gay man at all. I think it's for a guy who didn't fit in with her friends or didn't feel like he fit in with her and her friends, and tried and failed, and even though she loved him, she has to let him go rather than see him ruin himself by trying to copy somebody. (Maybe it's about a drunk or a drug addict losing a lover before he descends into addiction.)