I was chatting with a former colleague (not a friend, more an acquaintance) who just out of the blue expressed that he was sexually attracted to me. He is married to a woman and so am I. I was not expecting this and definitely not professional. If you have had similar experience, how did you deal with it? How did you respond to it politely without burning bridges? If it was an insinuation (instead of being explicitly verbal about it), it would have been easier to respond.