Well, sexuality is a sliding scale. On one side is heterosexuality, and on the other is homosexuality. Most people fall somewhere in between - those who are entirely one or the other are quite rare.

So, it could be that you're most of the way towards homosexuality, with just a nudge towards heterosexuality. You're still you, though - discovering that you're 99% or 98% homosexual instead of 100% doesn't change that fundamental fact.