I'm so glad they are both adjusting to eachother..actually, that is pretty quick, as it usually takes longer to adjust..the yorkie probably was in a cage with other dogs, and had to hurry and eat to be able to get food, I've seen that happen, but, when they learn that they will get fed, they adjust..I'm sure you're wore out, not just from the long trip, but with everything you've been through..heck, I was to get a yorkie puppy the other day(last Wed) and ended up with 2 of them..believe me, I know how quickly you get wore out..
But, they are worth it)..I'm really happy for you that they are becoming buddies..