When my wife asked me for a divorce, everyone asked me if there was some one else. She was acting too confident for a SAHM with 3 kids faced with going out on her own. I was of course was defending my W saying it could never be true...
Then I did some looking around. Found a new card for her 40th B-day - from an ex-b who she was seeing just before me. Then I found an email where I discovered they had contact, unknown to me and where she professed her love to him - and to wait for her for the divorce to be final before contacting again. She also said in the email however that she was going to give me a chance with the trial separation and that I was a 'good man'.
