Heather,
My first reaction when I read your post is that this could be a great opportunity for you! Didn't you say a while back that you weren't sure if you wanted to stay at this job? Sometimes the universe does for us what we can't or won't do for ourselves.
Having said all that, you obviously have some choices. You could move to where the company is moving and keep the job. You could ask for a raise to cover the commute cost. Or you could look for something else. There are probably other options, too.
Just remember, when one door closes another usually opens.......
L