I wanted to underline a lot of this but Medium refuses to let me underline today.
It’s always interesting to get the other side of the story.
When I learned that the man I’d loved and trusted for 20 years had a secret girlfriend for 10 of those years, I felt betrayed by Mark, not Mollie. I didn’t even know Mollie.
I didn’t blame her for his dishonesty and infidelity.
I think you’re right — Mark wanted to cheat and if Mollie hadn’t been up for it, he would have found somebody else.