The cost of divorce is substantially more than the cost of any marriage ceremony/wedding/reception. In a divorce, you will either split everything that you have accumulated during your year(s) together, or lose it all. Divorce is also one of the cruelest marathons that a human being will ever run, emotionally speaking. The only person that wins in a divorce (or, PALIMONY where people live together as common-law couples) is the attorney - they make hundreds of thousands of peoples' hard-earned income each year and feed on the misery of divorcing couples.
Move on and examine the mistakes that you made in this relationship - don't make the same ones, next time around. You cannot change anyone else but yourself. It isn't a crime to make a mistake, either, it's just whether or not you choose to repeat the same mistakes that will determine if its intolerable or not.