Sure, I could tell you I am no longer a lesbian or that I am no longer attracted to women and am straight, or I could even tell you the moon is made of cheese. I could tell you many things, but the moon will still not be made of cheese, and I will still not be attracted to men.
I am absolutely comfortable with the fact that men marrying men, women marrying women, and heterosexual men and women marrying another are entitled to the same exact rights, all the civil rights, all the civil liberties. And quite frankly, I don't see much of a distinction beyond that.