When there is a WW or MLC, the W will usually step beneath her previous standards. That goes for the type of men she may date, her new circle of friends, her activities/behavior, the way she dresses, and her overall lifestyle.
I don't claim to have read every story posted on the board, however, I'll say this......the pattern usually shows they affair down. In other words, she will have a secret affair with some guy that looks like a joke. He doesn't work, or he makes much less than her present lifestyle demands. The OM may be the complete opposite of the taste in men she previously preferred. Most LBH's are shocked when they see a photo of OM, or learn about his track record with previous jobs, women, etc.
Avoiding people she knows will not support her new behavior, is very common. That's why she will make new friends who are into the things she's doing.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!