The phrase to remember is "only believe 50% of their actions and 0% of what they say".
You should never find a friend to make wife take notice. That would be using someone unfairly.
Even if you found someone, I doubt your W would be that relieved. Mine wanted me to find someone, but when I did, I noticed the jealousy and pumping the kids for information. And I think part of the reason she asked me right before the D was final for a second chance is the "want what you cant have" thinking. I got the feeling that if she could have worked it legally she would have enjoyed being married to both OM and myself.
Avoid the batchitcrazy that comes when someone is in the position your W has placed herself. She is in a fog.