Chelsa permits Harley's original affections to persist intact. For a while. (She maintains regular upkeep of his kindlings to his lovely new friends, of course.)

And then she gets impatient, because he's so antisocial, she can feel him all kindled warm but he refuses to act like it, it's not even just her he's nasty to but her other friends as well, and there's one thing left she hasn't tried.

She doesn't really like dousing people. Even when warmth isn't aimed her way, it's still warmth, and warmth is good. But she can do it.

She does a few repetitions of the douse, late at night, while he's sleeping, and then she cuddles up to Amdon and goes to sleep herself. With any luck Harley'll be better behaved in the morning and won't even notice why.