So I'm wondering what experience folks have had with casual, finite relationships.
So I met this woman.  We like each other.  She's moving far, far away (6 hours 

) in two weeks.  We've been dating.  
So last night, we have this talk about her leaving and basically that being it.  See ya.  Nice knowing ya.  Peace.  
Now, I seemingly have two options.  I can either continue to have a fling that we both agree will ultimately go nowhere, or I can back away and forget a girl I'll never see again. 
Some might suggest I ride it out for the two weeks and have a good time.  The problem with that is that it's not really my personality, and I actually 
do dig this chick.  She'd be a good girlfriend, were it not for the moving and never talking again business.  
Any thoughts/storys/experiences to share on this?