Dave,

I think talking to the MIL was a very good idea. You are part of the family and you need to strengthen your family ties. Well done. While it is important not to cry, beg, manipulate, etc. to get back in your wife's good graces, it is equally important to show that you care deeply about the outcome, and want to participate in decisions made regarding your life and your family. Building relationships is a good way to go.