I have had several posts about the Catholic controversies over divorce and remarriage. Here, here and here. This seems a good time to refer my friends and readers to resources that may be helpful to you.
If you are a Catholic, and believe your attempted marriage was not in fact a valid marriage, Rose Sweet’s material can help you through the annulment process. (Actually, Rose’s stuff helps a lot of people through alot of post-divorce healing.)

If you are Catholic, and your spouse wants a divorce, and you believe your marriage is valid, Mary’s Advocates has a wealth of material for you. Bai Macfarlane has done a prodigious amount of labor, compiling information about canon law and Church teaching. She includes a sample petition for you to use to your bishop to ask him to try to intervene to stop a break-up. Mary’s Advocates provides a template petition containing this plea. I do not know what your bishop will do or say. I do believe however, that no harm can come from asking.
The Ruth Institute, the organization I founded, has a whole page for the Reluctantly Divorced (a term we coined) and a page for the Children of Divorce. We even created a brochure, summarizing the elevated risks that children of divorce face over their lifetimes.
Finally, you may wish to consider sharing your story with our readers. Our Tell Ruth the Truth blog provides an outlet for you, and solidarity for others in similar situations. I find that many people feel alone when they are dealing with family breakdown. Nothing could be further from the truth. You are absolutely not alone. Pretty much every family in America has some form of family breakdown, somewhere in their family tree. Let’s help each other.
Your friend,
Dr. J