She can possibly win that. Being the breadwinner, and an active parent, if she can convince the court she has better opportunity and support in another area of this country, they will likely grant it. It wouldn’t hold you back from following or getting vacations and holidays, but if there is nothing holding YOU to your area, which it seems as if there isn’t.... she can likely do it. I’ve looked into it, I’ve seen it done, etc.
What’s your best chance of this not happening ? Ensuring you have a steady job and income. While your W worked, were you being Mr. Dad? Play groups, sports, education, etc? We’re you a very active, involved, stay at home father
A 10 year old marriage isn’t going to be much by the way of alimony if anything at all. Can you support you and your son? You’ll get some child support, but will it be enough to create a stable home for your child?
You need to be putting yourself in the best position ever, starting yesterday.
Because if the courts see a dad who can’t hold a job, has poor employment history, and a mom who has been supporting her son and her H, they are going to favor in her side.
Your chance of keeping your son in your state is to become employed, consistent, and steady.