If you"re talking about behavior, I believe you. Under that standard there are countless former heterosexuals too...ask about 1/2 the married men you know. They are certainly "former" in the sense they don't get any sex.
The question is, what kind of sex would they choose if they could have any they wanted?
That's my definition of homo and hetero.
Why don’t you at least familiarize yourself at least with one such man and his story. Start by looking up Sy Rogers. If he can change, anyone can.
Actually no -maybe you have bought into some of the propaganda? Heterosexual is an objective scientific term referring to how a species procreates e.g. two sexes.
REGARDLESS, with some exceptions (e.g. genetic defects) if one has sex or not; regardless, any orifice diversity they may choose to engage in, they are always a heterosexual (male or female).
HOMOSEXUAL as a feeling (orientation) is a self identified subjective term created in reference to an objective activity.
If you want to know more about how homosexuals can change, read the link I posted above, right after your comment to me.