I met this guy at work and the only reason why I started to talk to him is bc we work together and have same lunch, I didn’t know he had a girlfriend so I was a bit flirty with him but turns out he does bc he mentioned a lot about his girlfriend. I don’t understand if his taken why would he bother to laugh and talk with me and even always sit at lunch. Like we basically do everything together even walk out to the car. I mean it doesn’t bother me as much bc I’m single but knowing he has a girlfriend kinda feels strange. What would u do?