I'm so, so sorry you had to go through this. My heart breaks for you, and I am angry for you. I think you did the right thing by calling your wife to discuss this; you did it with your son's best interests at heart. She had to know that by sending that text message, she was going to upset and anger you.
I have no words (well, actually I do, but they aren't very DB, Christian or lady-like of me), so instead, just know that I am praying for you, your son and for your very lost wife.
She really just doesn't "get" what she's missing out on in you, does she? So, so sad.