The actor explained that he has to move around to avoid being harassed.
He told Vanity Fair: "I'm afraid of buying a house or anything because if there's one paparazzo outside for one day, then they'll never leave... the best way to deal with it is to move around all the time."
Of the Twilight fans who adore his character, vampire Edward Cullen, he said: "It is weird. You have to wonder - what do they want?
"I can't really understand it even now. It does have an angle which is attached to something quite primal in girls. I guess people want it to define them, like, 'I'm a Twilight fan'. That's crazy to me."