I wonder if you can you learn to live with the possibility of being a different sexuality? I knew someone who was experiencing the same sort of thing as you and eventually they just said to themselves and the world at large; 'i don't know - and it's ok to not know because sometimes there isn't a clear answer.' I'm a firm believer in that sexuality is more fluid than we realize - you may be more attracted to either sex at one point in your life but that doesn't have to invite classification nor does it have to mean it's simply a 'phase.' I agree that that's a very grey area to live in and being a very black and white person myself i admit i would find it difficult. However i think the point of being with someone is that your needs are fulfilled in a happy, loving and secure way. Both men and women are capable of that. I hope you find peace with your situation.