<human>: Last weekend I went out with some friends and unfortunately got way too drunk. I don't remember most of the night. I apparently met some guy and gave him my number. He sent me a text the next day that my boyfriend saw. He was upset that I got way too drunk and was worried that something happened. He wanted me to find out if anything did, so I text the guy back and he tells me nothing embarrassing happened. For some reason I took that to mean that nothing inappropriate happened. My friends didn't tell me anything happened either. So, I assured my boyfriend that everything was fine and he forgave me for giving out my number to some dude.

Fast forward about a week later. The guy texts me again. I apologize for insinuating that I am available and tell him I was really drunk. He responded with, "you did mention you had a boyfriend, but I'm not worried about it because you kissed me." I was stunned. I really thought I hadn't done anything stupid. 

I feel so guilty now. I already told my boyfriend that nothing happened, so I feel like I can't tell him now that something did. I know being drunk is no excuse for kissing someone else, but I honestly don't remember. I don't know if I should come clean or just let it go. I don't want to tell him because I don't want to mess up our relationship, but is that unfair of me? I don't know what the best thing to do is.

Give me the gist of the text in a nutshell
<bot>: Got blackout drunk and found out I kissed someone after I already told my boyfriend nothing happened. Don't know w hat to do now.