she wants to see who I chose to be my spouse
Please tell me that you've not moved this girl in with you. You can't have been seeing this girl for more than two freaking dates. What does she mean by your "spouse?"
If it's a new dating situation then tell her that once you figure out if you'll even introduce her to your son once you've become seriously involved, (because neither of you should be bringing new "spouses" in and out of your children's lives every other week that then she can call her a "spouse."
Todd you need to let this go. You take offense or you're on guard about everything she says and does which means you're no where near being over her or getting on properly with your life. Be careful who you bring around your children. Be careful with birth control (you don't want to have to marry yet another mother of a child and be careful what you are teaching your young boy. Last thing we need is yet another young man thinking that women are horrible people.
My suggestion; If you have bought this new girl around your son already that you introduce her to your ex "spouse." WTF is the difference?
You two need to start thinking less about what the other did to you and more about your son's best interests.
Sorry, but your son is more important than your's and your wives issues.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion