I don't know what to call this, it's somewhat of a romance but also kind of not. Stories where the MMC and a female character seem like they will end up together but don't in the end?
Or even stories where they at first don't, then they eventually do? I think Brayce Hart has one where the MMC is best friends with a woman who he'd dated years before but she was date raped and ended up pregnant, they eventually got together in the end (though I don't think they should have).
I have no idea how to search for that.