[Sebastian does think Bull is more bothered by all this than he lets on, but it's based more on the assumption than any new arrival would be unnerved if they have half a brain to spare rather than him being able to read any tell of Bull's. Sebastian never saw him around during the 4th Wall event either, since, well. He had his hands full fighting off deranged chainsaw-wielding mass murderers and getting killed by angels.]
Some might say it is a chance to relax for some time. [Instead of calling it "boring". To a normally-perceptive person, that'd probably sound like casual optimism, but you know. He's picturing the damnable egg pods while saying that.]
You will find plenty of ways to occupy your time, of course, and the magic of this world will periodically occupy your time for you-- but I take it you have been informed of as much already? [Probably even ad nauseam.]