The info is nice to have. But weigh the risks. Labug is right, if W ever finds out it will be a MAJOR blow to her trust and your credibility. IMO, you should suggest your W's friend stop sending you further info at least. Good luck.
Me:45, W:45 S:16 D:13 M:22, T:25 Bomb: July 2010 Putting finances in order for "D" Continue to live in same home-separate rooms