This happened a few years ago now but venting here about it because I feel I need advice to get any sort of closure….

So I knew this guy he was friends with me and my partner. We use to get weed off him. One day he messaged and asked for help because he was going through a hard time with this Ex and kids so my partner dropped me there and we had a chat. Next minute I’m taking Xanax then nearly 2 days later my partner picked me up and I have little to no recollection of this entire time but I have this deep feeling that we did something sexual or he did something to me?I have never given this person any reason to come on to me. I don’t know how to feel about it. I’ve told my partner the entire situation and we have gotten past it as a couple but personally I have so much anxiety and thoughts over it that I can’t move on in life. 

Help please. Any advice would be great