Wow! How ironic, Beau6183! Just about two days ago you posted in the college/degree thread about how you skipped college 'cuz you thought the computer field involved outdated knowledge. However you had changed your mind but were putting your gf through school and once she finished you would start. Wasn't that you who said that?
I'm sorry you learned the hard way: But you're just another statistic. I have read of many who had their fiancees or fiances put through school and suspend theirs only to regret it later.
Hon', here's the underlying issue: You don't get into marriage talk if you have not established and found yourself. I don't mean you have to be this wealthy person . . . I'm not speaking of material wealth. I am speaking of an independent self, where you see the essence of the self and how to integrate it with your new found love. I speak of not mixing love with what I call self-annihilation. Find yourself. If you found yourself first, then you would walk through what made you happy and what made both of you happy, instead of what just made her happy.
Sorry, if human nature were perfect, it would be great. However, in my opinion, human nature is self-centred.
I'm afraid your world surrounded this woman. You live your life through this woman. It is good she left you 'cuz you certainly needed help. You need some breathing space, and someone had to give it to you soon or later. Don't be depressed. Be happy, not that she left you but that you have been awakened to the self . . . find the self.
Okay, on that note: It is great you still want her, but I hope it is because you truly love her--not 'cuz you want to "settle" out of fear you can't get another woman. I hope you are willing to work things out should a window open. And I wish she would make efforts to work things out between the two of you. However, if she doesn't, then it is time you move on. Every disappointment seems to be a blessing in disguise.
About legal matters, you certainly have a chance to recover expenses incurred due to her breach of contract. But this does not necessarily apply to your case since laws vary from state to state. Some states allow for a recovery, whilst some don't.
Putting legalism away for a moment, why would a man who claims to be affectionate about a significant other regret within a day decisions such as this he made and expenses he incurred?
What's up with that?
Best of wishes to you in recuperating!
[
This is simply my opinion. It may be not so far from preposterousness, but that's simply an opinion; thus it is free to be ridiculous! 
]