Abe finds out from Robert and Philip about Aaron's actions at the party

“Robert: "Is Hero even here?" Abe: "Wait, what did you call him?" Robert: "What?" Abe: "When you walked in... what did you say?" Philip: "He really didn't tell you about it?" Abe: "No" Robert: "Alright, Rachel's ex-boyfriend walks into my birthday party, with a shotgun." Abe: "What?" Robert: "Swear to god"”