Grandfather
It does seem to be an extremely awkward situation. It seems that the people you pick up on your travels become very attached to specific regenerations of yours, even if generally you are the same person.
Oh goodness. I wonder if I could still convince people I named her TARDIS now. It was so easy when I was a child.
Definitely not Earth. It is a lovely place but I have had far enough of it for now. I am open to suggestions. You have seen far more of the universe than I have.