I'm 23, he's 42, and we still live together. He's been my best friend for as long as I can remember. There's never been anything weird between us before. Let me preface all of this by saying that he is a good man. He's never preyed on me or made me feel uncomfortable. I always feel safe with him. But last night, we had some friends over (everyone has been vaccinated) for a party and all got drunk. I was half-passed out when I remember someone climbing into bed next to me in the dark. I can't remember who made the first move but I remember a lot of kissing, and him on top of me. We definitely had sex, and I obviously couldn't consent, but he was drunk too and I really enjoyed it so idk about calling it rape.

When I woke up the next morning, the guy was gone. I had no clue who it was. There were three other men at the party, my Dad's friends. As well as six other women, my friends. Not counting me and my Mom. Context: My Mom and Dad are divorced but often still sleeping together. None of my Dad's friends said anything to imply that they were my hookup. None of my friends gave any indication that they'd hooked up with my Dad. But all day, he seemed like he was avoiding me. I overheard my Mom mention that he "didn't come to bed" last night and he got really jumpy and nervous. 

I'm scared to death that he was the one I slept with. I don't know what to do or say if that's the case. But I'll probably never know because how the hell would I even ask? I don't think I could...