[Maximo]

I'm sorry you feel like Rex has abandoned you. Don't lose hope. He is young and it is probably a phase.

Be patient and don't try too hard to win his attention or affection. If he feels forced to do anything, he probably won't want to do it. This is especially true of cuddling, I believe.

Although some Yorkies do attach themselves to one person, many more can feel equally bonded to 2 or more people.

Are you the one who feeds Rex's meals or takes him outside? Make sure you are a source of fun and not just the disciplinarian, groomer, and taskmaster.

Don't ever make him feel trapped. For instance, my boys know they can come sit on my lap, but they don't have to stay. They can leave anytime. Throughout the day, I give them quick pats on the head, or a little scratch or rub here and there. That way they aren't scared that every time I look at them means they are going to be trapped.