Kristen Stewart Won't Turn That Frown Upside Down At LAX!

Someone’s not a happy camper flier!

Kristen Stewart should be lovin’ life as a single lady, but instead it looks like she’s feeling down in the dumps.

We’ve heard she might still be pining away for Robert Pattinson, but we think it’s about time she embrace the single life. After all, he has apparently already done that!

Or at the very least, we wish KStew could’ve put on a semi-smile during her arrival at LAX…

…because seeing her happy might just get R-Patz a little innerested in what she’s been up to these days!

[Image via GVK/BauerGriffinOnline.]