Cl. I cannot see how your miscommunication can explain your wifes behaviour but am not at all suprized that you take responsibilty for it.
I can only go by your posts but you come across as an extremely mild, mannored man who avoids standing up for himself like the plague to the detriment of any hope of living in a caring sharing normal marital relationship.
So tell me what does your "unpleasant behaviour " look like? I imagine silent, possibly sullen and or curt, then escaping to do your own thing ie hiding. Apologies if I have this all wrong.
I realise that childless couples have a different relationship than those who have children but even so your wife seems to be the spoiled child in this rel and you the ever patient parent trying to placate her. Still don't know if she is an only child.
I see no boundaries and unless you can set some and become an equal in this partnership and that would require a huge strength on your part and consistency, then I really see this being the pattern for life.
As I said this is all my assumptions from reading your many posts but there are two sides to every story so..
I would like to feel some passion from you,feel some love for your wife. It is that passion that will give you clear boundaries to work on and a goal to aim for and importantly a breaking point.
You are into year 3 of GAL, acting as if,maybe time to revisit what it is you actually want and need from this marriage or accept the what is.