So my wife and I have had some martial problems recently. I later find out she has been texting and calling a certain number after I leave for work at midnight. Come to find out it is a co worker of hers that I have known 30 years. I confront him and he just tells me they are friendly conversations only. Prior to this happening I noticed the same phone transactions going on before this incident. Well this is also the guy that I know over 30 years. I get them both on the phone and he says she tried to kiss him but he pulled away. Apparently she was having a bad day at work because of our problems. When he asked her what was wrong she burst in tears and tried to kiss him. We worked through this and things have been good. I admit I get a little anxious when she goes to work because they are still co-workers. Also bothered because I asked the guy about the first number and he said it wasn't him. Long short he changed his number and began talking to my wife again. I love my wife dearly and don't want to lose her. She has done just about everything for me to forgive her but I just don't fully trust her after several lies to me. What should I do?