I think there is a difference between having a difference of opinion and standing your ground and yelling at the other person. I don't think you should start yelling at your wife. But perhaps you do need to engage her more when you feel strongly about something. This actually is a skill that you will develop when you go to Retrouvaille. You will both explore your feelings on a given topic at the same time and then share those responses.
This sounds like a topic you could discuss with your wife right now. Have you been too laissez-faire in the relationship? Does she want your input on decisions that are being made around the house? Has this been lacking? Has it been a problem in the past?
Warning: It may be something that she likes about you. So before you go changing it, you could discuss it. I know a lot of my friends can't get something fixed or replaced around the house without shopping the whole decision with their husband. I make all those decisions, and then he comes home and I proudly show him what we got. I'm happy with the freedom to make those decisions, and he usually seems relieved that he didn't have to choose a paint color, a stove, a rug, whatever.
