She's not taking her meds. She's definitely having manic episode and getting into financial trouble. LFW had the right idea. Talk to your lawyer now and start getting your ducks in a row.
As to whether or not to talk to anyone else in the family, is there anyone else she is close to? A sister/mom? I think it's time to get brave and let someone else know how bad things have gotten because if things go sour for you, she's going to need the back up. Your wife is going to be MAD when you tell someone, but IMO, it's worth it. She's already mad at you. She really needs help and she's not accepting it from you or from her doctor. She's going to end up in the hospital at this rate.
My dad was desperately, hopelessly, living-in-the-basement, alcoholic for YEARS before we learned how bad he'd gotten from his wife. Not that we'd have been able to do much, but we could have helped his wife at least put the pressure on him to get help. You're bearing the burden of this all by yourself. Tell her family.
SerafenaCo-Moderator, Bipolar Forum
It is a melancholy of mine own, compounded of many simples, extracted from many objects, and indeed the sundry contemplation of my travels, in which my often rumination wraps me in a most humorous sadness. -- William Shakespeare