My Marriage's Dark Secret

I’ve been married to my wife for ten years. We have a wonderful life together, but there’s something I need to confess that breaks my heart every time I think about it. Last year, while we were on vacation, I had an affair with another woman. It wasn’t planned or premeditated; it was just one of those things that happened when you’re not careful and vulnerable in a moment of weakness. My wife trusts me completely, and the guilt of lying to her eats at me daily. I’ve never cheated before, and I regret every second of it. We’ve been working on rebuilding our trust, but this secret still haunts us.