Don't take this advice, but I would wait until she's sleeping and then stab her in the face with a shishkabob skewer, hopefully giving her a transorbital lobotomy in the process.
If she was joking, she f**king deserves it. If she was serious, even worse. And either way, you can tell them they all "knew" you were "crazy". Would serve them all right for wiping their feet on you. That's just me.