Or participation in ritual abuse. There's a fine line between being faithful to a faithless spouse and being that spouse's doormat. This is why we must be selective before taking vows.
Good point. There is no obligation to live with an abusive spouse. In fact, there may be an obligation to decamp pronto, not only but especially if there are children at risk. The spiritual obligation to pray for the offending spouse and his/her repentance and reconciliation still applies.
I strongly agree that you have to be very selective before taking vows. If the rate of Catholic annulments is any indication, there are many, many couples who should never have taken vows in the first place, and whose vows are in fact invalid because they had no real commitment to them from the get-go.
It's a pathetic, painful, and shameful situation.