Surely shouldn't love be a bond formed by mutual interests, and care for one-another not merely a lustful passion?
If you really wanted to be in a relationship with her you would not have done that, you were just looking for an excuse to leave her sub consciously at least.
Gender shouldn't really come to be the deciding factor of a relationship, although she should probably have told you before that.
But the point is, when you didn't know t you looked straight past it, and if you ever truly loved her you would manage to look past it even after you found out.