At the end of a glitch is a glitch, PB's hand and Jakes elbow are saying stuff like 'i missed you'
Anyway, I'm just like 'What the..?.' And also, through the whole episode, PB is making out with her hand.
Hopefully this will be further explained later on, but all I can do now is SPECULATE! So...
It possibly represents how PB doesn't want to date Finn, which has already been covered like a bazillion times so Imma rule that out, but it's probably because...?