Has Gabourey Sidibe's Fame Went To Her Head?

There have been several reports that Gabby's fame has went to her head. Ever since her Oscar Nomination for Best Actress in Precious and several other big roles she has obtained the up and coming actress has been snubbed a diva. Reports say that she has refused to sign autographs and has turned down pictures with fans and made very rude and snide remarks such as "don't you see I'm busy!" and "come back later" while laughing condescendingly...