My husband has left me after 12 years because he feels he wants to be on his own and enjoy a bachelor life. In the last six years of marriage, we have not had sex. He tells me that he is now looking for a sexual relationship and cannot bring himself to sleep with me. Over the last two years, I have suggested therapy but he refuses to go. He says he still loves me but doesn¿t want to hurt me. Could he be bisexual?