Am leaving my job to start a new one in a couple of weeks. A bloke at work (married) who I have always got on well with found out I was leaving and text me to ask if I wanted to have an affair (not in those words but not far off). I have worked with this guy for over 5 years and I know his wife quite well as I have worked with her b4 and keep in touch (he knows we speak). We have always had a good laugh and banter but as far as I was concerned it was just a laugh. I told him straight I don't go near married men (I'm single at the mo). AIBU in feeling quite insulted that he fancies a shag and then not have to see me every day in work cos I will have left and that he thinks I could actually do this AND STILL be friends with his wife! He text me b4 to ask if I was OK and that 'we're both adults and he hopes we can be mates'. Am I supposed to be really blase about this or am I right to feel he is an epic twat who thinks I'm a slapper.