"Uh, Barry. So Oliver Queen is the Green Arrow?" Iris questioned. To which Barry responded, "Yeah" "Oh, my god. He just got so much hotter." She breathed. "Oh, my g–"

Previously, Iris has mentioned that Oliver Queen was on her 'three list'; a list of people she could cheat on her boyfriend with. She states that you usually never meet the people on your list implying that it consists mostly of celebrities and other public figures of which Oliver is. In this installment of Invasion! Iris finds out that Oliver Queen is the Green Arrow when Supergirl goes through the formal introductions, as she is from a different earth(Earth-38). By this point in the series, Barry and Iris are finally dating (yay!) so her comment about how hot she thinks Oliver Queen is is frustrating to him in a joking way as he knows Iris doesn't plan to leave him for Oliver.