Hair (Horror?)

This is a dream I had last night. I was standing in some unfamiliar place, just blankly standing there, when suddenly someone I knew started talking to me. Well, we weren't close friends, but we'd occasionally chat through mutual friends. In fact, I had a slight aversion to this person. As we were talking, they suddenly handed me something like a strand of hair. It was straight, black, and about 5-6cm long. When I asked, "What is this?" they replied, "It's XX hair!" but I couldn't quite make out what kind of hair it was. ...Though I might just not remember. Then, they seemed to be happily trying to show me something like a notebook. However, while I was listening, for some reason I put the hair I was given into my mouth. Even in the dream, I felt disgusted and wanted to spit it out, but for some reason, I kept it in my mouth. But then, a close friend of mine suddenly appeared, tapped me on the shoulder, and the moment they did, I stuck my finger in my mouth and took out that hair-like object. And that's the end. I feel like there might have been more to it, but the impression of this scene was just too strong. Thank you for reading this far.