Bruce had adopted your sibling. Your sibling had become a vigilante meanwhile you became a villain, after getting adopted by another villain. But, you'd now gotten civil with your Batfam sibling, so, naturally, Bruce wanted to properly meet you with less fighting and assorted insults.

So, here you were, sitting in Bruce's study across the desk from him.

"It's nice to finally, properly, meet you," Bruce said, extending a hand for a handshake.