I'm sorry but when I read "pride month is defeated" in the context of a heterosexual engagement my mind immediately assumes the dude is a closeted homosexual who chose her as his beard instead of coming out. And this is how he "defeated pride". By choosing a heteronormative lifestyle over his actual preferences.
The most optimistic scenario my head can come up with to make the sentence make sense would be that she's bisexual and because of him she chose to commit to a heteronormative relationship.
In any way, for a lack of a better term, putting your engagement in context of defeating pride makes you look quite gay.