Caught Red-Handed

I met her at a bar last month, just weeks after I officially separated from my wife. She was everything I wasn't looking for but somehow couldn't resist, wild, unapologetic, and completely in tune with herself. We started seeing each other casually, always careful not to cross the line into serious or exclusive. But one night, after a few drinks more than usual, things escalated beyond our boundaries. We ended up at her place and pushed through those limits together. I knew it was wrong, but I couldn't help myself, she was like an addiction. It felt so good to let go and be carefree for once. But then the guilt set in hard. What if my wife finds out? How do I explain this to her? To myself? The next day, I tried to act normal around everyone, but inside, I was a mess of emotions, ashamed, confused, scared. I keep replaying that night over and over again in my head. It's like there's no escaping it now.