There are so many things wrong with this.
First she's has some reason to not trust her husband or else why is she snooping?
Then, instead of going to the alleged source, the Genius Bar, she goes to an online message board.
Then she makes the message board the linchpin for the future of her marriage.
Since she's already snooping, why not just e-mail the potential other women?
Baby, baby, it's a wild world.