New Year.... Can't remember if we had sex

Laura • USAF 🇺🇸
Before I start, please keep your "shouldn't have drink so much" to yourself. It was my birthday + new year and EVERYONE drank. 
I went to my mom's bestfriend's with her oldest daughter (20)and her son (16) while our parents were at another party. We had the house to ourself the entire night and the whole day on January 1st. We were 10 and we drank drank drank and drank... I ended up in the same room as this cute guy and we were in the same bed, I was on a totally different planet in my head. We talked about things and then we talked about having sex. He went and got my purse where I had condoms but after a while he said he was too intoxicated to make it work down there. At some point I can't remember what happened, we were talking and then nothing. He went downstairs around 4am and then left because he lived right next to my friend's house. The thing is I can't remember what happened and if we had sex or did things. I remember wanting to kiss him but I don't know if I did. He's a good guy, all his friends told me he's that type of guy who doesn't fuck around. What I'm sure of is that he stayed with me until I fell asleep, we were cuddling. But I can't remember if anything happened and everyone else is trying to figure it out now. He doesn't have a phone anymore so my guy friend messages him on fb but he hasn't gone on it yet. He said he'd go ask him in person if he remembers anything from the night lol...
Have you ladies experienced something like this before? 😭😂 
Happy new year by the way!