I understand the feeling. I told my wife I wasn't sure I wanted to go and for a day she considered going without me. Even that bothered me a little bit but she changed her mind and said she wants me there even if I sit on the curb all day.
I'm not siding with your wife but try to see things from her perspective. This crap gets old...for everyone. She wants you back and probably even feels guilt and responsibility for your issues. However, you live it while she tries to live on and make a normal life out of a difficult situation.
No one understands your pain better than the group on this site. Just try the understand the other perspective. They walk on eggshells all day every day not knowing how we're feeling day to day. That's a very difficult position for a spouse to be put in. Love her as much as you can. You need it as does she.