Drew Barrymore drewjustinfight.jpg

Even though they're no longer a couple, apparently Drew and Justin still got into a little lovers' quarrel at the premiere for their new film, He's Just Not That Into You!

A spy tells Page Six, "Drew came up to Justin and started whining that he kept ignoring her. He was apologizing and saying that he didn't see her but seemed really annoyed and...not that into her."

Didn't Drew learn anything from the movie? He's just not that into you if...he's ignoring you on the red carpet! Move on, girl!