Guyette,
You both sound lonely and scared. Both of you are struggling to survive in the only ways you know how. She does it by pushing on you, you do it by withdrawing and both of you feel hurt and wounded. Her anger is just as sure a sign of misery as is your depression. Obviously the two of you need to look deeper into what is going on.
Blame tends to make things worse, and talking to your friends about the situation is causing you to blame her... even more than you might already be! Of course if she is this angry with you, then she is clearly blaming you as well. You each feel like a Victim of the other. She responds by trying to get control by trying to make you do what she wants, you alternate between Rescuing her by giving in and fighting back in a Self-Protective way. To learn more about this you can get my book:
Oh Wow, This changes everything from my website
www.ohwowthischangeseverything.com There is a way out. It has to do with 1) Stopping the blame 2)taking ownership of the problem by recognizing it's your issue as much as it is hers 3) having empathy for the pain she is in (as well as your own) 4) respecting that both of you are doing the best you can to deal with the things that are happening.
Sometimes individual therapy can help one of you but result in your getting a divorce. I'd encourage you to find an
Imago therapist in your area. Look up "Imago" and "Harville Hendricks" on google to find one.
Start seeing your wife as a wounded kid. I know its hard because she is older and you have a lot of anger and pain in the way. Then, recognize that her anger is a cry for help - just like your depression is. Listen to the pain underneath her anger and see if you can find out what is really going on - and I guarantee it's not
really about you! You can find your way back to each other if you stop seeing each other as the problem (blame).
Let me know if I can answer any other questions. Do order a copy of my book to help you understand more clearly what I am talking about here.