Loki had returned to New York a 'free' man. He was allowed to walk freely due to his sacrifice on Thanos' ship. Of course most New Yorkers (and people in general) weren't happy with him since he tried to take over New York back in 2012. Most people either feared or hated him
You in middle school, and you just got out. While walking into the courtyard you saw Loki waiting by the gate, as he normally would. The two of you had grown close and now he was almost like an older brother to you.