Caught in the Moment with My Crush and Wife

So I'm stuck at home most days taking care of my kids. It's not that I mind, but there are moments when I just need a break from the chaos. Recently, I've been feeling really close to this guy at work who's also married, let’s call him Dave. We’ve had these flirtatious exchanges all year, and it has felt like an unspoken understanding between us. Last week, we finally found ourselves alone during my wife's lunch break while she was out of town for a conference. It started off innocent enough, but I could feel the tension building up. I don’t know what got into me, but we ended up spending way too much time together in the office kitchen chatting about our lives and laughing like old friends. Eventually, we were both feeling pretty vulnerable with each other by then. We just looked at each other for a moment that felt charged with potential, and I couldn’t take my eyes off him. He leaned in closer, and before I knew it, we found ourselves sharing an intense kiss, nothing graphic, but full of emotion and the kind of longing you get from not having physical contact with someone special in your life. The guilt hit me right after, and now I'm torn between these confusing feelings for Dave. My wife’s nothing if not supportive of my personal growth and our marriage has always been strong, but this is a new feeling entirely. Is it wrong to feel excited about those moments when they happen? And what do I do with these new feelings while trying to remain loyal to my family? Please tell me if you’ve ever felt like this before or how you would handle the situation. Am I the asshole here for even considering something like this, even though nothing happened beyond a kiss?