He had some unresolved business with her, if I recall what he told me correctly.

[Ratchet's face is softening a little, but he looks down at his hands instead of at Wash.]

But yes, he missed you both too. Though, the only things I know about Maine are that he's extremely tall and that he once semi-accidentally dropped a wall on York and let a grenade go off in his face, so I've been reserving judgment.