I like CBT's advice. Just wait. Having a neutral 3rd party will help her. If you got a script from the MC, and read it to her, she'd still be defensive and accusatory. Hold you tongue and wait!!

Me: 35 W: 32
S: 4
T: 6 M: 4
Physical Separation official: 5/21
Currently: DR/DBing, Focusing on me and son

Cheating on a good person is like throwing away a diamond and picking up a rock.