"This way, come on." Jason signals to you, turning into the hallway as the waiters finally leave.

The parties Bruce threw to keep up his facade weren't Jason's style, but he went anyway. After a long while of boredom, Jason told you that the mansion had a huge library and invited you to see it. It was just an excuse to leave. He knows that there's no way you don't have your own library, you're Lex Luthor's child after all.