In the end everyone touched by the infidelity suffers. We are all here to support each other so keep coming back. It helps.
You would probably gain more traction by focusing on yourself and going out and doing things on your own. Have a girls night out, or go to a club, dress up and go wine and dine yourself. Keep him guessing or wondering - but don't have an affair yourself during the period.
I got sucker-punched by an attorney so be sure and protect yourself.
"You can't reason someone out of a position they didn't reason themselves into."