"Gotta say, it's been nice havin' friends again. Been kinda lonely since my bro got locked up an' ... uh, everything went to shit."

He looks down self-consciously when she ascribes some of her happiness to his help. What he's learned about her history with Joker comes to mind and he takes her hand and gives it a squeeze. "Glad yer finally seein' some happiness, Harley-chan."