[It's not like Bellamy didn't see the other person in the aisle, but it's library, he can't possibly expect to be totally alone here. But even Bellamy, king of rudeness, knows better than to sit down in inconvenient places especially when there are books involved.]
[He scowls a little and makes a huffy noise, louder than necessary because he wants the annoyance to be heard.] You could probably stand to take up a little less space, unless you're planning to sleep here. [A beat.] Though even then, I'd recommend a cushion instead of the floor.
a.
[He scowls a little and makes a huffy noise, louder than necessary because he wants the annoyance to be heard.] You could probably stand to take up a little less space, unless you're planning to sleep here. [A beat.] Though even then, I'd recommend a cushion instead of the floor.