Jake " Geez Finn you screwed up big time bro. "
Finn " Don't need reminding. "
Jake " What were you thinking about exploiting FP's feelings like that? Not to mention almost getting her, Ice King and Gunter killed. "
Finn " I had to see the dreams conclusion. "
Jake " I think it's more of a case of wanting more than needing, and I must confess I'm really disappointed in you. You are the last person I would expect to do something so foolish and so selfish. "
Jake: yeah. But next time when you get a new girl, don't do the same thing you did again. Promise ?
Finn: I promise
I felt bad for FP, can't blame her for being upset.
But honestly, I think a sadder break up would be Jake and Lady, because they're relationship is part of AT history, they got together in the pilot; if that ended, that would incredibly tragic.