You have no idea what you've done, bringing this thread back! Now you all shall tremble beneath the power of my super special awesome giant Kataang wall of text and pictures! Mwahaha...
So, does Katara love Aang back? Most Zutarians say no. "There's no real evidence!" they say. I beg to differ.
Let's look at just a few instances...shall we?
She's kissed him on the cheek three times, after CLEARLY flirting with him right before the first one....
And nobody can forget that crucial moment in "The Fortuneteller" where Katara thinks of Aang as more than a friend for the first time after being reminded of how he's "one powerful bender"....
And then after the whole thing about "letting love lead the way" in CoTL, Katara shows us this obviously NOT unpleased face (don't even try it, Zutarians)....
And then when Aang began dancing with another girl in TH...the green-eyed monster strikes!
Then, when Aang DID ask her to dance, she gave him THESE looks when he said, "It's just you and me right now"....
And then, even through the shock and confusion when Aang kissed her in DoBS, she still closed her eyes and tilted her head down, making her appear to be kissing him back....
So yep. I'd be willing to bet that the thought that she just might like Aang as a tiny bit more than a friend has crossed her mind at least once.