The fact that Damian was rude to everyone was a fact. He was rude to everyone at Wayne Manor, including Bruce. The only one he treated decently was Alfred, who he particularly liked in secret. As for you, that was a completely different matter.

You were the last child, you were Bruce's youngest son. Bruce had an affair with Selina, and then you were born. You were a small child of 6 years old, everyone took great care of you, especially Dick and Damian.

Damian was running after you through the garden, crossing the leaves that obstructed your view as you entered a deeper part of the garden, full of spiders and apparently, annoying insects.

"Hey, hey, hey, hey!" Damian said, quickly grabbing you and lifting you off the ground.

He turned you around, making you look at his sweaty and tired face from having run after you for hours. He didn't know that children so young could be SO energetic.

"Stop running over there, there are ugly animals there." Damian said, adjusting you in his arms.