<human>: So I went to a birthday party with some friends and met alot of old school buddies from 3rd-10th grade. We all had a good time, then there were only 4 people left, her [20F] and me [21M] being amongst them. 

She got really imtimate with me, pulled us away from the other two, and told me that she had lost some interest in her current boyfriend [20M] (which she have been with for almost 5 years) because she had realized she was in love with me. She then proceeded to try to kiss me while I told her not to. This was hard because I was pretty drunk too, and actually find her really attractive. 

We've known each other for at least 11 years, and there have never been anything romantic between us, as we've both only looked at one another as a good friend. But the more I think about it the more I want it to be us. I talked to her yesterday and she said she didn't remember. That may be for the best because her current boyfriend and me have become good friends.

I have little to no idea how to handle this situation as she doesn't want to know what happened, but not telling her makes it hard for me to carry on. I know it might've been the alcohol talking, but at the same time, it could've been her subconcious. Telling her has a high chance to ruin her current relationship. 

What can/should I do in my current situation?

Can you give me the gist of the text in a nutshell?
<bot>: Girl drunkenly confesses love for me, whilst having a boyfriend. I had subcouncious feelings for her. She forgets, I'm stuck witch remembering.