She'd worked it out. Thing about Harley Quinn no one figured often. She wasn't stupid and she knew how to find Red easy. Also she was pretty sure the plants helped her out, Pointing her this way and that. No one listened when she said she knew Red better than most, but those plants did. She wished she could talk back to them sometimes, but instead she made do with a whispered thank you and she was there. Good and quick because she figured Ivy'd need her, and maybe, just maybe she'd be brave enough. She had to be brave enough. She had no choice. Because everyone was right. He had to die and Harley knew she should be the one to do it. She had to be.
She had a gun too, cause Ruby and Sam's house was made of guns more or less. She could do it too, she could take the shot. Maybe a few weeks back, no. But the threat about Red had done more to open her eyes than she figured anything else could have. She held it tight as she got closer, dressed not in her usual gear, not made up. But just in black, blonde hair tied back messily. She was here to save her friend.
She'd gotten in easy enough, most of the place was blocked off but she was just as nimble as the Joker had been talking about to Ivy. Only she hadn't heard that bit. What she had heard shocked her nearly into calling out to her friend... friend who apparently loved her kinda friend. Loved her. Like...loved loved. She must have, she must have enough to have come here, to be letting him hurt her like that, she was wilting like plants wilted and it was her fault. "You ain't gotta tell Harley nothin Mister J." she said simply from her vantage point on one of the production rails. "You gotta drop that poker, and you gotta let Red go, or I swear to god I'll end you right here, right now, and don't you for a second think I'm gonna miss"
The gun was aimed right at the clowns head. And Harley was terrified. For herself, for Ivy for actually maybe having to kill the man she'd once loved.
"Tell me you're okay Red, I gotta hear it."
As to the response to her confession, that could come later. That wasn't for him to hear.