You are two women or two men who got married ten years ago in Boston, Massachusetts, but you live in Texas. You separated a year later. You consulted with an attorney back then and was told that you cannot get a divorce in Texas and that your options were to either void the marriage or one of you move to a state that allows same-sex divorce so that you can get divorced there. You did not pursue either of those options and instead just went on about living your lives separated. Then came June 26, 2015 when the United States Supreme Court ruled that same-sex couples are afforded equal protection and are now allowed to be married in any state. Then the bomb drops on you and you realize you are married. Now what?
Well just like any couple on June 26, 2015 your marriage became a recognized marriage in Texas. That means that since the date of marriage you have been accumulating community property. Property is not limited to physical possessions but also bank accounts, retirements accounts, investment accounts. Everything. The longer you remain married the longer you continue to accrue community property. Further, your spouse is now entitled to inheritance and social security benefits because you are still married. Additionally, your spouse also has rights in terms of making decisions for you in the event of your inability to make those decisions.
Unfortunately, this answer is not going to be the easiest answer, but essentially, if you want to move on past that ten-year old marriage you are going to have to go through a divorce in order to end the marriage and divide the marital estate. Going through the divorce will resolve all property, financial, inheritance, and other spousal decisions as well as allowing you the freedom to marry in the future.