Help! (and thanks!)

Question
Hi Cindi,
It's your friend Blue again. First, thank you for your great reply! It's funny we had the occasion to speak with the previous owner (who returned her to the breeder last month). We asked if he had ever seen her wag her tail, and he said, yes, only while she was playing---then he paused and thought for a moment and said, no, come to think of it, she never wagged her tail in six months! So, we really appreciated your response---thank you!
Now to today: Help! This has been a hard day for Xena, and for us too. She has been with us one week and today, suddenly, something has changed---not subtly either. Xena's had a very hard time today for some reason. She's  distracted and mopey. She (all of sudden) doesn't want to make eye contact, or listen to any commands, even "sit". She stopped following me around the house, or even "checking in" with me as she usually does. She seems sad, but we can't figure out why. She's had the usual amount and opportunities for paly and affection but doesn't seem interested, she'll run outside but doesn't seem keyed into either of us like usual. She seems depressed rather than sick. I tried to play with her to perk her up and she wouldn't bring her kong ball back to me, so I stopped playing---she took her ball upstairs and is laying her chin on it now (she's not overprotecting though---she will let me have it---she just doesn't seem to like us anymore---I'm not exaggerating either. She just seems to have lost interest. I can't help but think it's related to her being returned twice to the breeder but have no idea what triggered this. She seems to suddenly have lost her confidence in us. We're not behaving submissively, or aggressively toward her either. I'd say we are benevolent pack leaders. Anyway, any ideas? I don't want to make a big deal of it (especially to her) but she just seems to have lost interest. She'll let me pet her but doesn't seem to care (she usually seems to drink in affection. I'm almost positive she's not sick. It's kind of worrying. Help please! Thank you again for your last reply, Cindi.
Thank you!
Blue and Elana

Answer
Have you had her vet checked just to be sure all is well with her? Probably you are right and it's nothing physical but you never know. She could also be realizing she's there permanently and no matter how much better this situation is than her home, it was still home. On the other hand, it could be that she has been through so much she's remembering getting comfortable in her LAST home and being brought back. Hopefully with continued kindness and love she will come out of this. I wouldn't push her too hard, don't expect too much from her right now., just give her some extra space and affection. Be sure to continue her schedule and keep walking her. Hopefully she will work through whatever is going on with her quickly. Dogs can be like people, we all have our moods and sometimes they're not great ones. Try giving her an extra special treat that she really likes and be gentle with her when she's feeling like this
Cindi
oh and you are most welcome, I hope this passes quickly