Friends and bf think something happened between a guy and I. I think I’m too deep in to tell the actual truth now.

My boyfriend (29m) and I (23f) have been together for 2 years. We have never had an issue like this and are very in love.

I was hanging out with some of our friends about three months ago. My boyfriend wasn’t there because he had a family obligation. After a while it was just me and said friend(30m), which wasn’t a big deal for us. He eventually got really touchy and inappropriate. We were both really drunk. He touched me inappropriately, tried to kiss me but ended up going for the neck, tried to kiss me again, and tried to massage me. I stopped everything and we talked about it the next day. There were some things I was kind of fuzzy on. Like I know what happened but I don’t really remember what I was thinking. When we talked the next day he apologized and begged me not to tell my boyfriend. They are very close. I truly feel it was just the alcohol, so we decided it would be best for us to stay away from each other as much as we could. That something like this would never happen again and we would forget about it.

Everyone has noticed I have distanced myself from him and keep asking me if something happened and what is wrong. I have told everyone nothing happened and I feel like I’m so deep in this lie now that I can’t say anything. I don’t know what the fuck to do. I didn’t think anyone would notice we distanced ourselves at all, but it seems like everyone noticed immediately. When he is going to be somewhere I make up an excuse or try not to talk to him. It is so awkward. I don’t think he was acting in malice towards my relationship or anything, I think he was just a drunk man and has been respectful since. The other day we made plans with a couple of other friends that did not include him, but he was added last minute. I guess I was pretty obvious and my mood changed and we both barely spoke. When we got back home he yelled at me and ask me what the fuck is going on. I pretty much just said nothing is going on and shut down. I had no idea I was so easy to see through. They have been giving friend a lot of shit too.

I feel like I can’t let this out but at what point is this now worse and more damaging than what actually happened. Is anyone going to believe me if I say what actually happened now? What if he says something different and goes against me? He is very adamant about keeping our mouths shut. I feel so guilty and am living in constant fear of them finding out and think every time my boyfriend comes home he is going to start yelling at me. I know I really fucked up here, but what is the best course of action now? I need a plan. I thought I was doing the right thing at first.

ETA - I am going to talk to my boyfriend later today