I was dating a guy a few years ago for approx 5 months. Things ended and he is now married to an American girl and lives in Boston with her. We have the occasional text convo every couple of months. He's coming back to the UK in a couple of weeks to visit family and has asked if I would like to go for lunch. I'm guessing he won't tell his current wife what he's doing. Is this a bad idea even if it is innocent (on my part at least, I can't speak for him!) I'm single but would never do anything with someone involved but I'm just wondering if this is completely out of line on his wife?