Girl meets boy. They break up because they haven't seen each other for a month. He calls up claiming he loves her and can change, she takes him back, it lasts for a minute, he picks fights and claims he needs his space and is generally a bit of a hot&cold character.
She gets fed up of this behaviour, dumps him and strolls off into the sunset refusing to acknowledge his whiny attempts to suck her back into his emotional fuckwittery. She lives happily ever after and he - well, we frankly don't care what happens to him.
Am I wrong to derive a message of 'You shouldn't stand for being messed around by an idiot - dump him' from this whole thing and AIBU to think that's a pretty good message to enforce on teenagers (presumably the target audience)?