Demi Lovato Posts Sad Tweets From New York

Actress Demi Lovato arrives at LAX airport to catch a flight out of Los Angeles. (FlynetPictures.com)more pics Demi Lovato (FlynetPictures.com) Demi Lovato just embarked on her North American tour last week, but it seems like she might already have a serious case of homesickness, judging by her tweets.

On Sunday, Lovato tweeted excitement over arriving in New York City, writing, "Oh whattuuuppp new york?!" But things changed, as a few hours later Demi's mood turned wistful ("I wish I had a show tonight :(") and then maudlin ("My heart hurts today."

Demi has since tweeted that she's feeling better, but one has to wonder what prompted the sad tweets? We're guessing it might have something to do with Lovato's rumored boyfriend Wilmer Valderrama, although he's stuck mostly to semi-inspirational quotes followed by his own initials:

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