Ever since this scene I know for sure Asa won't be the one that'll give Denji happiness but it'll be s.o else, a completely normal girl who'll align with the theme of pt2. But Asa will learn to accept he's not her man and will decide to leave him for good, which will be the ultimate character development for her. Both Asa and Denji will live to the end, and both will learn to leave each other for each other's own happiness