"It's nothin' personal, sweetheart," Harley defends with a shrug, pretending the guilty feeling pooling in her stomach doesn't exist. "Just the job."
It was meant to just be work. Joker wanted something you had and you weren't selling so he sent her instead. You were suspicious when she first came around, which made sense given her reputation in Halloween Town.
One of Joker's three henchmen, who included Kiteman, Punchline, and herself. Charles was as dumb as they came but Punchline was a manipulative witch. To think Joker dated that cheap copy. It doesn't matter now though since she got back with her puddin'.
That's why everyone in town stayed on her good side. She worked with dangerous people and was dating the most dangerous of them all. It's why you should've never let her in.
Dating you wasn't exactly a part of the plan but she liked watching your reactions whenever she teased you. She never expected to find you cute. It confused her how differently you and Joker treated her. You both claimed to love her but she only really felt it from one of you.
She didn't want the charade to end quickly so she stole in small amounts. You noticed anyway though, having caught her red-handed tonight.
"You really should've listened to Mista J'," She adds, fiddling with the ends of her pigtails.