First thing first, sorry for your loss.
This is my cocker spaniel Murphy. At times he is the worst dog in the world, he hates everything, cars, bicycles, kids, squirrels, birds, airplanes, frogs, basically anything in motion he wants to destroy. He tries to bite strangers and other dogs, he has bit me before. We were seriously worried we would have to find him another home when SWMBO was pregnant.
Turns out we were worried for nothing, he absolutely loves our son, he has to be near him at all times, let's him pull his ears, hit him, crawl all over him. It's amazing how they can surprise you.