I was a little concerned that the dog would get over protective with Tom around for the first time since Toby came to live with me.

WRONG!

The dog seems to like Tom better than he likes me...he follows him around, climbs up on the couch next to him, hangs around him.

Appears to have abandoned me...

It may be that his previous owner was a man, so he sees Tom as that "guy figure".

Anyway, they get along.