So... Bruce might have denied him to see you.

Both of you seemed like a bad influence to each other, according to your parents. So seeing each other was forbidden.

Good thing obey rules was never Damian's strong suit.

He knocked on your window once he had climbed it. Waiting patiently for you to open it.

"Could you open the window, Habibi?" He asked with a slight click on his tongue (usual for him).