I don't think we are complicated at all. We are actually quite easy but of course that depends on the capability of the man we are dealing with.
In a brief way, let me explain something to you; What is small to you, is huge to us. That means, anything you find not important is something we want to talk about. We need to be heard and listened to, not ignored. We need to know that you "get it" when we are upset about something and yes, when we say, "It's nothing", it's always something.
What's wrong is that you are asking "what's wrong"/ It means you don't know. Why don't you know? Because you have not taken the time to ask her, Bernard.
Sit down with your wife and ask her, "what's wrong?" She will most likely reply, "nothing." That's when you make it a point to focus all your attention on her and keep asking until you get an answer. Tip: Be patient. It may take hours. lol But find a way to ask the same question different ways. "I love you, help me understand what's troubling you. Help me. I don't understand."
Another tip: Women are natural nurturers. We LOVE to help you. But you have to ask us.
Hope that helps. Oh, and please don't ever say, "Is it that time of the month?" We hate that, really.