Giles takes the bait, but of course he takes the bait too well and wants to sequester Ossie away like a damnable mother hen. Of course, they can't go back to his room, because his room is 'Dorian's room and it's completely devoid of any of his actual things even if somehow he could convince Giles that it is completely unrelated to the mysterious handsome stranger he met earlier.

Think, Wuthridge, think-

"I don't have one," he answers, tearfully.

...

Not his best work by any stretch of the imagination.