Why Tonight?

I’ve been in a long-term relationship with Sarah for years now. We’re both okay with not being exclusive, and we each have our flings on the side from time to time. But tonight, I found myself slipping into my old high school boyfriend’s bed after drinks at a mutual friend's party. His name is Mike, and he’s been off-limits in my mind for ages, until now. We talked briefly about how much we both missed each other but decided against anything serious. Yet here I am, undressing him and feeling that familiar pull between us as our bodies reconnect in a way they haven’t since those early days. His hands grip me hard, fingers exploring every inch of my skin like he never stopped thinking about this moment either. Why is it that after all these years and other partners, I find myself wanting Mike again? As we move together, the question lingers: what does this mean for my relationship with Sarah if I can’t even keep things simple when old flames resurface? Can anyone relate to feeling stuck between two people who both hold a piece of your heart?