I don't know what's wrong with the writer or his fiance' that resulted in her not telling him about her asexuality or him not starting a conversation about her frigidity in the bedroom until 7 years had already passed, so that fact alone tells me that they shouldn't be together. There are two absolute musts in any relationship and those are trust and communication. They're missing one if not both of those elements in their relationship. Sex is an important aspect of the vast majority of romantic relationships, so if one wants it and the other doesn't, that's another problem. I don't think either one of them would really be happy if he was out banging other women.