Facebook fabulist
Someone who's on Facebook more than their ex and spends all day rating your pictures like they're the judge of a beauty contest, while posting their own terrible selfies like they're the next big thing.
'Your picture is a 6. I gave myself a 10. You’re a 6.'
'I posted 25 pictures today. You posted one. You’re a 1.'
'I took a selfie at 4 a. m. You didn’t even take one.'