change the locks on the house don't let her have anything out of the house, take her name off any deeds, car titles and cancel all credit cards ..if fact start selling anything that could be looked at as joint property , and tell his wife.. you got to be ruthless or you will get hosed.
First get everything worth value and get her name out of it and start selling stuff (her's) like crazy and get a locksmith or visit menards and get those lock changing kit's and if she's got a pet. Sell it and everything I mean everything that speak's money take her name out of the car, house and even the bills. Like she don't exist no more.
Just wait, she will get her karma and no worries you will move forward and she will have to deal with the drama not getting killed by the other man's wife. Diff contact this man's wife and see if you can get revenage together and gang up on her.
sell everything....sell the house, car, everything you want to keep to a trusted fsmily member or friend for a DOLLAR, then buy it back when the divorce is final. tell the wife and let her know what to do.