Confused and Afraid ADDer

I was diagnosed about one year ago.I struggle every single day with all the extra effort I have to put forth just to function.I have started medication and I think oit is working.My wife on the other hand does not.We argue a lot and I'm scared that she doesn't love me any more.She is always telling me what I am doing wrong.Neve4r apologizes when she is wrong.Even when I do something correctly , she is still very critical. She is also dealing with my son who has some issues also, for that reason,I try not to disagree with her. When I start to get very angry I walk away and try to calm down.She thinks I'm trying to walk away from the problem , but I'm not.All I want is for her to be safe and happy. (whatever it takes to get her to that point)Any help at all would be so greatly appreciated.I do have to say that I tend not to apologize.Sometimes I don't think that I am being hurtful.WHEN i AM ,IT IS NOT ON PURPOSE.I love my family with every bit of my soul.I don't know what I would do without them.Just thinking about life without them makes me sick to my stomach.(not suicidal!!!)I am going back to my counselor,I really need some help.