I Don't Like To Be Noticed

So today I was at the mall with family, and me and my mom were ready to go because we've been here for quite a while. Though I had to look around for my father because he didnt have his phone on him and we were ready to go. So I go into Sears to look for him, see if he's around. (Note: the Sears there was shutting down because so there was price cuts and stuff on tools, clothes, ect.) I'm on my way to the tools department and I see an old classmate (Made me just ugh cause I honestly don't like seeing people that I know, that arnt friends/close with.) So I just calmly walk past them and I hear them shout my name. I kept walking and did not look back like as if I didn't hear them tbh. Thing is let me just ask one thing: Why would you want to talk to me of all people? We don't really know each other, we were just classmates for a good period of our lives. Also like I was the quiet, loner, akward, to himself type person all throughout middle school and high school and me and you weren't exactly in the same court you know. Plus i just wanna be real, anyone who I was not good friends with in high school, and just didn't talk to but I knew who you were because we were classmates....i honestly just don't wanna see your faces again tbh. And no not in a spiteful way, more as in a "I finished High school please go away or it's awkward". I'll admit this though, this kid has rubbed me the wrong way in a way...some has to do with problems with me, jealousy and stuff with people I don't know that well but also I just couldn't tell if this guy liked me at all. I can't wonder what he thought of me because all through middle/high school my head was in another place, I was just letting myself go with the flow of the wind Or whatever...