That would be misleading. An "ex-gay" is not straight. Ex-gays are not sexually attracted to the opposite sex.If you really change just call yourself "straight" don't bother calling yourself "Ex-gay". You don't hear people going around talking about how they're "ex-child", "ex-single", "ex-married". People say they're "adult", "married", or "divorced".
Pssst! a little secret: Neither a gay man's penis nor an ex-gay's penis erects for women. A woman would feel cheated and unloved. Her marriage would end in annulment or divorce. Would you want your daughter to marry a guy who couldn't get it up for women?
Only a bisexual man or a straight man can "please" a woman. The therapists who claim success are simply convincing bisexual men to "go straight".