He's just sick about not having all those celebs tripping over themselves to fawn over him while he acts like a teenybop groupie, being the headliner amongst roaring anti-Bush crowds, and not having all those secret service men making him feel like the big somebody he believes he is. I imagine how he's feeling now is akin to what has-been stars feel like.
(Sniffle), Gosh, Kerry is so "tolerant and compassionate" (sob).