
there's NO WAY she's going to tell you exactly where she's been for the last 3 hours while you were searching all the neighboring camps yelling, 'sarah?! sarah?! has anyone seen my girlfriend, sarah?".
just accept that she ran into superman-to-your-captain-marvel along the way to the porta potties. we're certain she told him she has a boyfriend, in fact that was the first thing out of her mouth when they met. The second thing out of her mouth was her tongue into his mouth. If one of your powers was ex-ray vision you could see that she's no longer wearing those flame-pattern panties you bought her for her birthday - those dirty things are now stuck to the ceiling of superman's executive-class, primer-coated motorhome at least 6 blocks away.
but don't let it bother you though, bro. she still has plans to hang-out with you on saturday night. plus, she'll give you a mercy hand-job at circus circus on the way home so you can tell your friends you got laid at burning man... well, sorta.
the lesson you didn't learn from last year: don't bring sand to the beach.