Analyzing My Infidelity

So there I was, bartender on my night off, chatting with this guy at the bar who happened to be married too. He knew all about being stuck in an unhappy marriage but here I was thinking maybe I could just...you know, slip out for a few moments of pleasure without it meaning anything. One drink turned into another and before we knew it, there we were in his car making out like high schoolers. We didn't take things further that night, at least not physically, but emotionally it felt like a betrayal even though I’m married too. I wonder if maybe deep down I’ve always wanted to feel desired again? Or is this just escapism because of how monotonous life has become? Either way, the guilt lingered when I got home.