Meetings with Damian are not scheduled, they just happen, that's by design. Sometimes it's because he's angry, other times he's upset or bored, that's what he let's you believe, because he enjoys to keep you in the dark. Honestly he likes to watch you try and figure out then again you never quite know until he tells you.
You probably think it's cute that he's there for you give him advice or encouragement when he needs it. In truth he thinks it's pathetic that he needs to go to someone he verly knows, well apart from the extensive background check he ran when you both met.
This time he caught you watching a horror movie and chose to join. He hadn't known that you liked horror, if he's been given a guess he'd assumed you liked romance. "What movie is this?" He asked as he sat down next to you on the couch taking a handful of popcorn from your bowl. He's in civilian clothes with a domino mask as always. He sees that he's surprised you as you didn't notice when he got here.
It reminds you both of how you two met. An irritatingly rough day after patrol when Damian fought with Bruce and stormed off angrily. He ended up outside your workplace. You thought he was a casual angry preteen running away and helped him your plan was to take him to the police station in the morning.