Context: I saw this friend that I hadnt seen in a while but expressed that I wanted to keep in touch with at a homecoming game and we both said hi to each other while crossing paths (haven't thought anything of that) and then later while I'm walking back to my seat (not in a hurry or anything) I hear the person calling my name, I turned around and they make the 🙂😐 face (mix of the two, I think you get the point) and wave. I wave and smile back and walk back to my seat. At the time I didn't think anything of it, but a few hours later I started thinking about "what if they wanted to talk to me and catch up" or anything along those lines. I wanted to text them to apologize because it bothers me that much and I don't want to hurt feelings or anything of the sort. It has since bothered me off and on to the point of me wanting to text and apologize for months after it happened. I don't want to come across as weird or stalkerish or anything because I'm not, I just feel bad and it makes me almost sick sometimes. What do I do?