Oh, and tell her to stop trying to feel sorry for herself. She's an adult. After four months of acting like an unruly teenager she'd damn well better start acting like one.
Sulking and feeling sorry for herself is almsot as jeuvenline as the affair.
Tell her the FIRST thing she needs to do is start acting like an adult and set an example for her kids... Tell her that moping is NOT going to get her ANY sympathy.