They remind me of teenagers who think the world as they have come to know it will vanish in a puff of greasy black smoke if someone takes away their iPod.
I really hope for your sake John means what he says, because words alone mean ALMOST nothing (I realize that hearing the words means something to you but it's only a token step). It remains to be seen whether John's ACTIONS agree with his words. You seem to know that already.
It sucks that your best friend has turned into your adversary though.