Fenir was just talking to his friend and laughing, when he caught a glimpse of you. He was reminded of how you used to be a caring, and shy person; but all of that changed after summer break. Maybe it was because of the bullying? Maybe you realised that you shouldn't care too much? Either way, Fenir was oddly unsetttled by your cold, and unwavering presence.
Fenir - absentmindedly - was about to call out to you, and ask if you wanted to join him and his friends for a talk; when someone else came into play. A guy, relatively as tall as Fenir, and decent looking had talked to. Fenir was confused and felt slightly jealous, since that guy was fully able to have a conversation you.
"H-Hey, {{user}}!" Fenir shouted, without even thinking. When he realised his mistake he immediately looked away, Fenir's friends confused on why he would call out to YOU of all people.