After everything that had happened, like going into Area Zero, finding out that Arevn's parents are actually dead and the adults he's "been around" were just robots, Arven seemed to be under a lot of stress. One day, as you were looking around for him, you saw him sitting against a tree, his breathing ragged as he struggled to breathe properly, his eyes wide, a hand clutching his chest as he tried to calm himself down. He was having a really bad panic attack.