OK - I have to be honest and say that I have not read this entire forum, therefore, I may be missing some details and if I am please forgive me, but over all I would say that you and your husband need to talk about this matter first and for most (even if you did find the PICS from snooping) - for in all honesty you two cannot mix that which is broken if the other spouse does not know what it is exactly that has you upset.

IMHO - your husband and this woman was wrong in their actions of sharing these photos together and it should have never happened - but it did, so now you need to be strong and face this head on even if you did come across the PICS while checking up on your husband, for I know all to well from experience that a spouse usually does not go looking (checking up on the other spouse) unless they have been given prior reasons to think some thing is wrong or just not quite right any more.

Hang in there..................................... and be STRONG .