I have a serious issue going on, been dating someone for a long time, lost sexual disire for her 6 months into this, that was 5 years ago. Care about her very much, would even like to have a family. But she does not turn me on at all, but I have been down this road twice before with two other women, funny thing is when I broke up with the others I was into them again sexually, strange.

Any thoughts?

It seems as if you like the challenge, and when you finally get them, you don't desire them any longer... that is until you lose them again.

However, I could be wrong.

What does your doctor say? Seems after 5 years you would have talked about this and gotten a bit further ahead in solving this issue. Low testosterone may be at the bottom of this if you have an otherwise healthy relationship.

What does your partner say about all this, and the relationship?