I hooked up with my best friend’s ex on our graduation trip and no one ever found out

Back in my graduation trip (I was single at the time), my friends and I were wasted. I’m talking stumbling out of the club at 6 or 7 in the morning kind of drunk. We were a huge group, like 20 of us, guys and girls all mixed.

Eventually, everyone started splitting off to their rooms. My roommates (three of my close friends) went back to our room, but then my best friend’s ex pulled me aside and asked if I wanted to come to his room. I don’t even know why I said yes, but I did. We ended up making out. Nothing more, but it was still crossing a line. We were so drunk, and right after we swore that nobody would ever know. And to this day—five years later—no one from the group has the slightest clue.

She didn’t even like him anymore at that point, but I still carry the guilt. She was my best friend, and even though technically I didn’t “betray” her, I know if she found out, she’d feel hurt.

It’s been eating at me for years.