Did they end up together?

Did Claire and Bender end up together when they were back at school?

Eh no. Yes, they shared a passionate kiss and they both wanted it really bad. There may have been some times that they hung out, maybe there were a couple of times when they were at the same party or bar. and there was always the sexual tension between them. but they never became boyfriend-girlfriend. and there were probably other encounters between them, forbidden touches if you will. but no sex. and they def hardly spoke to each other at school. it was just too weird. and they had their places.

if they did meet regularly for breakfast as a group then yes, a relationship might have blossomed, but since that is just the name for detention (the breakfast club - thank you mally) it didn't.