typically when dealing with something like this, people are actually confused as to what the real problems are. I'm not saying you are, but it may help you to list your problems with the relationship in order of importance to you. It would also help us, i believe, be able to give you stronger advice on the situation. once you have that list, have your wife do the same if she's willing and confront the problems one step at a time. large changes always seem daunting but when you break them down one goal at a time, they become much more achievable. This applies well to relationships as well.
Also, regarding communication, just keep reminding her that you're there for her and that you'll listen to anything she has to say. If you say it enough, she may just start coming out with everything she's thinking. Hope this helps, good luck dude.
Also, regarding communication, just keep reminding her that you're there for her and that you'll listen to anything she has to say. If you say it enough, she may just start coming out with everything she's thinking. Hope this helps, good luck dude.