I think Tosh
. Not so much to be a romantic thingie for Boober (I think that was more puppy love) as to be a sort of balance between Red's in your face-ness and Mokey's withdrawn..ness
.
I actually think Tosh when fleshed out would be the sort that is soft spoken on the outside but uses that to get what she wants on the inside..Anyone who has such a huge 'doggie' but treats it like a tiny puppy must be a little two sided to I think...