One thing that Theo appreciated with Bill was that he was always on time. Which was why he was both surprised, and slightly concerned, when Bill was not on time today. So granted when he arrived he was only two minutes late, but it was still a deviation from normal. Theo didn't like deviations.
When Bill entered the library, though, he did not let on his concerns or annoyance, but took in his appearance with his usual smile. He noticed the wet hair, the lack of breath - suggesting that Bill had hurried there. He couldn't help but to wonder what had kept him.
'Bill, how are you?' he asked like normal, gesturing towards the sofa. 'Busy morning?'