No, your taxes are what they are. You might get relief from the family court.
What you should have done in 2016, if you were ordered to pay $10,000 out of your retirement plan to your ex, is to get a qualified domestic relations order (QDRO). The money comes out of your plan with no tax or penalty to you. Your ex has the option of taking a lump sum and paying income tax, or putting it into their own retirement plan.
I don't know the whole situation of course, and you still might have had to borrow some money to pay off the marital credit cards. And maybe there was some other reason your ex got a loan instead a QDRO. You may have been poorly advised by your attorney. Sorry about that.
