Is your Yorkie super attached? (This is not a complaint or concern post, just general curiousity)
My Charlie is 4 1/2 months old, I'm a SAHM so he gets a lot of people time. And he loves it. He loves every single person he meets(so far), and dog too. But he's a clingy fella. He's heartbroken if we have to go somewhere without him. He's like the ultimate lap cat, because he's a dog instead lol.
As an example - As I was typing this, he's been beside me, on my lap, on the laptop, on my shoulder, and now he's back along side of me, gazing at me. Ah, I never knew I could love a small dog so much.