Everyone finds their path, eventually: Selina thought she knew hers, before all of this. Now it's different, sure, but just the way something in an old mirror is different: everything she thought is reflecting back, a little out of focus, but still recognizable.

"Jeez, Bruce. You trying to save the whole city, now?"

It doesn't surprise her. She always knew he'd try to save everyone, if he could: it was part of the trouble they always had with one another.