The sitch: On-again, off-again lovey-dovey co-starring duo, now in the on position, complete with a rumored engagement.
Suggestion: Drew, you're on a roll with your "Grey Gardens" accolades, and you two will soon have a movie to promote, so it looks like things are going strong. But we know Drew's track record. As Drew's star power stays strong after decades, Justin is only beginning to rise. Justin, you might want to be sure you're always two steps behind Drew fame-wise. Keep co-starring in Drew vehicles; that seems to work well. Just steer clear of romantic leads opposite Kate Hudson or Katherine Heigl or any non-Drew Barrymore or things might get ugly.