Yes. Clearly if she is Harley's friend, Joker comes with. THIS IS THE LAW OF GIRLFRIENDS, RIGHT?

Also: AWESOME. Shepard will be all about that, and since she's been harassing Steve as a kid, when the event is over, she'll probably shoot him some wry message asking if he ever escaped that house or if he needs her to come over and open the window for him.

This can clearly segue into HEY THERE, I HAVE ALL THIS EXTENSIVE DATA OUTLINING HOW TO SHUT HYPATIA DOWN. YOU LOOK BULLET PROOF. LET'S DO THIS.