DEAR HARRIETTE: A few months ago, I traveled home for winter break and went on a date with a former classmate. I was surprised when he asked me out, mainly because growing up, I was the only gay boy in my grade. To be honest, I really wasn’t even that interested in him; I just wanted to see what this was about. Turns out, we get along well. He wasn’t just trying to make a move – he took me out to eat at a nice restaurant a few towns over, got me dessert and drove us to the beach to watch the waves afterward. It seemed amazing ... until I found out he has a girlfriend. I ended the date immediately and made him take me home. I want to tell his girlfriend, but I don’t want to potentially out him, especially in the evangelical Midwest. What do you suggest I do?