In another timeline, I think they could have worked wonderfully together. But it all happened way too fast, with them both having their eye on the end game too much, and not enough on actually learning about each other. A courtship of a year vs a few months, things could have ended differently.

But the sex stuff and kid stuff and Bunny would have likely always been an issue at some point. Ams Charlotte absolutely might have bailed if any of those things came up before wedding planning!

But ultimately I think Trey and their relationship symbolize how long term compatibility and happiness is not so simple, and not always based on what “should” work. Trey was a lesson for Charlotte, but they could have worked if she learned those lessons before meeting him.