I dislike the Bright + Hannah relationship on rewatch
I think they dated for a reason and did help each other grow (he helped he to be less insecure and see herself a different way, whilst she grounded him a bit more and made him want to change) but I don't think they would've worked at all long term.
I know they kind of left things open-ended yet on good terms between them, but I like to think they didn't get back together and just remained friends.