A what?!? His jaw drops when he finds out his kid has a- a- God he can’t even say it. A significant other!?! Why? Who? How long? What does he even do?!?

Bruce is flabbergasted when he does his usual Batman stalking and sees that his kid, his own child, has a- a- partner.

When his kid comes in he quickly turns off the screen of the Batcomputer and faces them.