*There's a hint of...something--he doesn't know, but he's coming to understand that he doesn't know a lot of things about friends--when Beckett says he'll be delayed. But he trusts Beckett, and if the vampire has to be delayed it must be for a good reason.
Not sure why he'd want to stop House, though. He, at least, wanted House to redo his morgue test.*

why
stop house
?