After The Split

I just ended my marriage of twenty years and am trying to reclaim myself. Last night was the first time in forever that I felt truly alive. It started with a simple dinner date, but as we walked back to his place under the moonlight, it became clear where this was heading. Inside, he barely had to say anything, just took off my clothes, and soon mine were touching his skin, our hands roaming everywhere. We fell onto the bed, clothes still tangled around us. He entered me slowly at first, then with more urgency, both of us panting and moaning freely as we clung to each other, lost in sensation. Afterward, I felt a mix of relief and guilt, it was cathartic, but also felt wrong somehow. Am I just acting out or is this okay? What do you think?