Going to a therapist alone, may leave you finding out things about yourself, that left you pursuing a woman outside of your marriage, before discontinuing the marriage, first.

The thing about therapy, it's also, no one else's business, but yours what goes on in that office. Meaning, therapy is private and personal.

If she wants to know why people drift away from one another and pursue emotional and physical affairs of the heart, then it's up to her to go find those answers, herself, whether in therapy or through plenty of research.

I am not surprised, that the other woman, stepped back, and stuck to her own personal boundaries and limits. Good for her!

Best of luck, as you navigate this quest to figure out what direction in life, you'd like to take.

PS. Men who cheat, it's usually from 'fear of confrontation.' That's a start...