In my opinion, it is highly unusual to have success as long as OP is in the picture.
Agree strongly. I'd even go a step further. There is no point in making any attempts at healing with a spouse as long as they are in the midst of an affair.
At that point, YOU are the loser, plain and simple. Nothing that you say or do could possibly measure up to the incredible rush and stimulation that comes from having a new love interest in your life.
Bill
"Don't tell me the sky is the limit when there are footprints on the moon."