Sure. I mean, I guess you just get to pick an empty one. [He pauses, looking conflicted, before adding grudgingly:] I guess you could take one on the same floor as me and Mabel. But you better not be all... you at her.

[Any truce he might have agreed to is completely off if she's mean to Mabel. And since traditionally it's Mabel, not Dipper, she's antagonized, he can't help but be apprehensive.]