How about going into marriage counseling? I think your wife might feel comfortable doing that, and trying to find out why this happened. Having a professional guide you two into talking it out, and really getting some answers might make her feel alot better about this. The therapist knows how to guide the conversation, and how to draw out answers that we need to give. There may be other issues too that need to be covered that we don't even know are "issues."

So try marriage counseling. Perhaps there are some things in your marriage that are keeping you two from having the great marriage that you want. Those things can be brought out in counseling too. We may not even be aware of some things! I wish you the very best. I hope things work out. God bless and please take care. Hugs, Lee