Joking aside, why resist it if you're turning straight? I'm sure no-one on here would suggest you should resist it if you had thought you were straight, but now felt you were turning gay.
I only personally know a few guys who were gay but turned straight, but there are plenty of them. I know several men who had sex with and even had stable and sexual relationships with boyfriends in school and college, really liked it (what's not to like?
but then decided they were more into women. They started sleeping with women, fell in love with one, got married and had kids. Good for them.
I know several guys like this, but they're very discreet about it. Sometimes it's out of respect for their wives. But I think it's more s because society has now largely accepted "purely gay" gays, but people tend to assume that any guy who used to have gay sex must be truly gay and is just lying about it.
I think that's so wrong. Sure, some are lying, but I know too many great and honest guys who used to "be gay," i.e. have gay sex, but just aren't now, i.e. just don't want to do it any more.