oooh - I'd never even considered the "leaving at festival" angle. Makes a lot of sense of why he'd be directing the 911 operator there, and why it would come across as sounding so weird. "She was just in her bed... but you should really check that shady festival." Because it wouldn't sound that great at all if they fought, he left her there, went to his buddies to blow off steam (or more likely smoke, hee-heee), slept all day, and then didn't even notice she was missing to that evening!
I'm starting to bet that's what happened, it explains a lot of things.
Why didn't he call her at work? Angry at his gf.
Why isn't he dead on with the time? She might have messaged him and he was like "whatever" and didn't take a close look at the text.
Why isn't he dead on with the times he left? When you've just had a fight with your significant other, you don't pay attention to details like that.
Why is he dancing around some things? He probably feels guilty that the last interaction that he had with her was a fight.
Why'd he panic so much when he saw her car? Anxious as to what's gonna happen and if they might break up....OR just flustered as to if something did happen to her. Or just a case of the guilties from fighting w/ his fiance.
He might even have made up the whole text message conversation so that it doesn't sound like he was angry at her, although if he did its not helping to keep suspicion off of him.
I'd call that a fair reason for him to be so flustered. I know I get pretty flustered after the few fights I've had w/ past boyfriends, and my brain certainly doesn't work right the next day, so I think its a fair thing to bring up, especially if he's feeling responsible for this because of whatever fight they may have had.
I'm playing devil's advocate again, so here I go hopping back onto my fence.....:fence: