I'm making sure they can hear it even from miles away!

[ Like he's announcing their arrival to the world or something. Besides, actually shouting loudly is pretty good for him at the moment since it helps him destress and at the same time it cheers him up and eggs him on too, making everything a lot easier to bear. He can scream at the world that they're here and that it's going to stay that way for as long as he can manage to drag her on. They're here together-- do you hear that, world? They're not going to give up this soon. Or at least, he isn't, and he's pretty sure she isn't going to do it easily either. ]

That's why there's no one there, they're all turning around the moment they hear it!