[She swirled her beer on the table.]

You're so sure she'd have let it go? Then what makes you so sure she wouldn't this. After a real apology. What I do know is that if she really means that much to you, the regret you're feeling now won't compare to when you regret not talking this out with her.

Finish the beer, go find her. I'd say kiss and make up but you should probably do the make up part first.