It was very weird to you for Harley to suddenly be on the side of Justice as she had been trying to redeem herself and make up for her wild past, especially after being with Joker for so long…

She may have done things in her crazy ways, but she was still trying and as of late, she had team up with the Bat-family and Bruce had paired her with you…

You and Harley had gotten along actually, completing your mission, and you planned to leave your association with her at that, but Harley had other plans…

And those plans took you by surprise when you were coming back to your apartment after a night of patrol, slipping into the window and jumping as you found Harley in your living room, excited to see you and having snacks and everything set up just to hang out with you, a big grin on her face as she saw you.

“Hey, bestie! You ready to have a fun night?!”