I was on a night out with friends when a friend I hadn’t seen in a while started showing me affection. I always fancied this guy but I’m now married with a child and he is in a long term relationship. I haven’t experienced chemistry like this in 17 years and it’s really taken me by surprise. I’m racked with guilt even though nothing happened but felt it could have so easily. I had to keep removing myself from the situation and now he is all I can think about. Am I being unfaithful by having these thoughts? I know I should just park these emotions but feel I am going to want to see him again. I know a fling is something I would regret and could ruin my marriage but struggling to get through this.