Your replies to me say it all. You have no willingness for looking inward to yourself and no willingness to try to empathize with someone else's pain.
Both your replies are full of deflection away from you and are back on your wife. Not one empathetic comment about how your wife might feel. No understanding that her withdrawal from you might actually be the only way she thinks she can protect herself from you. You show yourself to be just the way her family was for her growing up. They were not there for her so she had to take care of herself and she was okay. Now you are not there for her so she merely had to go back to what she already knew.
You have never even mentioned here whether you know if your wife feels content with her life and the marriage or not. Does she complain to you about anything?
But what is happiness except the simple harmony between a man and the life he leads? ~Albert Camus