Hmm, I feel a little conflicted. They are both deeply flawed and traumatized, she almost killed him during the dog incident when they were children, and he retaliated in at least some of the timelines.
Buuuut I don't think it's that poor of a match? Maybe that's because there are figuratively no other people to contest the whole "true love" condition (unless it gets resolved with a "love yourself first" message, now THAT would be funny as hell)