Is there something wrong with the relationship? Maybe its not medical--love is love and if your feelings for him are still there but not sexual interest it could be medical. At times like this a good lover will cuddle you and hold you, giving you emotional support. That more so will stoke the fires.

Perhaps you may wish to look at what in the past awoke desires--stories you would have read--pics...activities.

But with love that comes first--sex in a relationship is just one of the many benefits of a good loving relationship