So how are you feeling this Monday? Do you have any sort of legal paperwork in place like a legal separation? If your really done get the D, if not then protect yourself legally and just get a legal separation.
When my exh left the first time I went and saw our priest. I am no longer Catholic, but was going for exh even though he was far from a practicing Catholic. Anyway, his advice was to protect myself legally, but let him walk if he is gonna walk. God did not want me hanging on exh's leg. Exh, like your W, chose to leave the M. If she is committing adultery then you have every reason within the church to file for D....if that is what YOU want. Don't do it as some knee jerk reaction or to get a desired reaction out of her.
Hang in there.
Me: 46 FWS: 36 Married and Divorced 4/07, Pregnant 7/07,False R 7/07 Baby Girl born 3/08 Kicked him out because OW: 7/08 5/10 He realized what he had and lost. Moved home! REMARRIED 3/14/11!!