No solid proof. I know they have always been friends but other than that nothing.
My suspicion is only based on the fact that I have never met him and she used to speak of him quite a bit. Also one time before the bomb she was out and about and I txt her asking what she was up to. She told me and I just asked who she was with not meaning anything by it. Her response was "Why I was asking" also "why was I jealous". When she got home she told me she was with him but buying stuff for me. I just had a bad feeling about it.
Also I don't trust anyone who hangs around with another woman and hides it from his W. That to me stinks of someone who prev had an A.
All her other friends and colleagues have been quite open and I do not suspect any of them.
I did confront her again on it about 1 month ago and she said they were just friends but in order to ease our situation she would not spend anytime with him outside of work in future.
Of course i have no way to monitor this and given the status of our R and the fact that this was said to ease our separation as opposed to save our M I have no way of policing it.