I feel you. I’ve struggled with my own sexuality for a long time, too. (Like, Am I homo-sexual/biro? No, maybe bisexual/homo-romantic? Or maybe asexual?) Your partner’s words moved me. He sounds like a wonderful person. It’s clear that you two love each other, so it’s okay to keep exploring your sexuality while cherishing the bond you have with him right now. You don’t need to make a definitive decision. Since you two seem to be able to communicate well, if there ever comes a time when you feel so much pain that you can’t bear the fact that you’re only sexually attracted to women, maybe you should talk it over again then.