Couple of things and they are all going to sound harsh....
Blood is thicker than water. Unfortunately, in most cases a parent is going to put their child above the child's spouse regardless if the child is in the wrong. Its selfish, stupid, and being ignorant of their daughters terrible behavior/choices, but she is their daughter and you are just the guy who married her.
I don't know how strong your wife is in the Catholic faith, but the church teaches that while a man and woman can divorce civilly, in God's eyes that covenant cannot be broken by man. Neither of you will be able to remarry in the Catholic church, and it is considered a mortal sin to do so without an annulment or upon the death of the spouse. Also if your wife is with OM, ie committed adultry, she cannot receive the Eucharist, both actions are mortal sins. It's even a sin for a priest to knowingly administer the eucharist to an adulterer. Hopefully, if your priest is worth his salt he can shock her with this info. These are hard truths and are things I am personally struggling with deeply.
H(37) W(35) D8, D5, S3 T20, M13 BD 8/31/18 EA Discovered 9/13/18 Mediation 10/3/18 W files for D 10/12/18 W moves out 11/10/18 EA confirmed 12/25/18 D Final 1/10/19