VIDEO: Lo Ditched Heidi's B-Day Party On Purpose!

Despite being born-again buds with Heidi Pratt -- not to mention Audrina Patridge and Kristin Cavallari -- Lo "I'll Fold Your Laundry" Bosworth decided to skip Speidi's puppy-filled soiree, therefore depriving herself of the latest Justin Bobby-related blowup (a.k.a. part two of the "Drina And K-Cav Duke It Out Over Some Guy Who Isn't Worth It" show.) So does she regret missing all the action? Meh, not really.

The sassier-than-usual Lo Bos popped up on The Hills: Live After Show last night to 'splain why she bailed on Heidi, sound off on Spencer's "loser"ish man jewelry and set the record straight about her always-mysterious relationship status. Check out her full satellite interview, plus watch the rest of the After Show and tell us who got in the last/best word in the Audrina vs. Kristin smackdown.