A Weekend of Fun in Vegas

So there I was, playing tourist in Las Vegas with my girlfriend of five years, who's an amazing person. We were at a casino when this really attractive stranger approached us and made some joke about our boring relationship. It turned out to be funny instead of annoying, so we exchanged numbers. Next thing I know, he invites me to his suite for a night of fun while she was out with her friend. We ended up spending the weekend together before going home and it's not like it changed anything, we just had fun. But yeah, it wasn't exactly the best way to spend my anniversary.