We've all known an Ostrich Dude at some point in our lives, been involved with one or are involved with one.
 
Here's the Ostrich Dude's MO:  Life is going along swimmingly, when suddenly, a problem crops up, a difference of opinion, anything unsettling, that he has to man up to -- or dude up to, if you prefer.
 
So, does Ostrich Dude talk about the problem and solve it with you in nanoseconds?  Nooooooooo.  Instead, Ostrich Dude's fear reflex kicks in, he starts runnning in circles on those silly stick legs and buries his head in the sand.
 
Apparently, they do manage to have an underground network of pizza and beer deliveries because they can stay down there for long periods of time.  (Hey, I want some pizza and beer! Where's our network?  Phooey. We'd probably send salads and sparkling water.)
 
They are also armed with some kind of special ostrich sensor which sounds an alarm  when the statute of limitations on their transgression is up and it's safe to pull their head out and glance around innocently.
 
By this time, he feels you will be so distraught at his absence you won't care what he did, or, alternatively, will have totally forgotten about what he did -- proving ostrichs have no familiarity with the female psyche whatsoever, which is more akin to the elephant who never forgets.
 
Many times, I've seen the Ostrich Dude take flight merely because he didn't want to disappoint you.  Say you have a movie date and he finds he cannot attend.  Instead of picking up the phone and sadly stating the facts, he fears having to undergo the excruciating sound of disappointment in your voice, so instead, he flees -- making your disappointment meter go into the red zone.  
 
Ostrich dude is a problem avoider, plain and simple, and ends up causing far more problems than necessary, and far more problems than he's worth. 
 
So frankly, my dear, never stand on the sidelines feeling jilted and not good enough for an Ostrich Dude.  Truth is, there is so much better out there, and you're far too good for an ostrich.