He looked up from the sink at the sound of Jason's voice. He had sort of expected him to take the opportunity to sleep or just rest a little. He almost voiced that thought before remembering Jason's reaction to the kiss earlier. He probably wouldn't appreciate it or take it as Bruce trying to say something he wasn't. So he sighed and let it go. Jason was going to do what he wanted. At least he wasn't just disappearing into the night.
"Have a good night." He called a little awkwardly. It wasn't like he could tell Jason to send the team his regards. As far as he knew, they didn't know the two of them met up like this. While part of him didn't approve of all of Jason's friends (he really didn't like the idea of Jason being too close to Green Arrow's former sidekick, not because of the whole drug thing but because he was Green Arrow's former sidekick) he realized he had no say. It was good Jason had friends. The last part drew him back towards the room, to see Jason off. "That goes double for you." Don't do anything stupid. Don't get yourself hurt.