Fountain of Youth
Sounds like you are making excuses to be involved this way. If he really loved you and wanted you to be the one, he would leave his girlfriend. It is harder with children, but I for one think that it is harder on the children if the parents aren't happy. Actually, I went through a similar situation. Guy at work, fiancee, no kids though. I was very flattered and happy. However, I soon wised up. He was sleezy. Yes, he was cute. Yes, there was physical attraction(strong). But, I thought it was horrible too. His fiancee was beautiful, intelligent, and wonderfully nice. It was something I couldn't do to myself or to her. If he's doing this at work, it is totally inappropriate. Don't do it. Or, if you want, do it and regret it. Or, if you want, do it and don't regret it, but what comes around goes around.