I've read the book. I think Chapman really helps identify how we need to be loved. It was very helpful for me.

I do know that my husband and I do have different love languages. His primary is definitely physical touch. I have a hard time with physical touch. A very hard time. So loving him how he needs is very difficult for me. He is way better at my primary/stronger love language which is Quality Time.

I agree with eskielover, that it's possible you need to identify your wife's primary love language and see if that helps. I also agree that isn't always the answer. I can't remember much about Chapter 12, but if it helps I say go for it. It's your situation and you may know that is the right way to go for now.