Why?

They came in and kept on shouting I had to come out, but I just didn't know what to do. Alex was saying I shouldn't when I was out there before, but they kept insisting, so I panicked a bit cause I couldn't concentrate at all so I (as usual ) came up with a crappy excuse to not go with them, I told them I had to tie my shoe, and went behind in the classroom, and told the others to say that I wasn't there, and just as I had anticipated they came rushing back in two sec later, to ask me to go down and meet up with Alex. Since I thought that they were joking, I could see that if it was true, I wasn't sure what he would say or if I could even face him after the events earlier that day, so I just hid in the back of the classroom. The two of them came into the classroom again afterwards, but I hid in the only spot where they couldn't see me, and my classmates quickly found out why I was hiding. And so with my classmate's backup, they got convinced that I was not in the classroom. So for the rest of the day I made sure I was not going out of my classroom, and waited till they all had went home for the day, before I dared to step outside of the classroom and finally go home. As usual I started thinking about it like crazy, and it took me a couple of hours to reach a conclusion: I was an idiot. Why would I need to hide from him? it's not like I had done anything wrong, or had something to be ashamed of. I guess it was a bit awkward talking to him after almost a year had passed, since we last spoke, but that shouldn't have stopped me. And now I realize that that might have been a little stupid.