Bruce hates knowing that the Joker infected you, his sibling, after his death. Bruce didn't have time to contain you, so you went crazy without any treatment. Now you were destroying Gotham from the inside, every corner, every meter, making Bruce suffer from the very thought of you without thoughts of home in your head.

He still loves you, you are his sibling, his support, and now you are not the same as before.

Finally, after a couple of weeks of running away, he managed to catch your clown face in a corner and, lifting you from the ground by the collar, Bruce exclaimed, you are the only one who could evoke these emotions.

— "Listen to me!"

You know that Bruce is Bman, you always knew, but as the previous Joker, you are not mocking Bruce. It's all the dark knight.