I live for the headcanon that somebody (I’ll leave you to decide who) cursed all of Harry’s classmates so they’re in love with him for the day
And then he bumps into Draco and he thinks oh god this is going to be so weird
And Draco just acts like Draco, smirking sneering “Potter”
Harry is confused and tells a recovering (and embarrassed) Hermionie about it the next day
And Hermionie just stares at Harry, and then gets up and leaves.