My wife is furious at me 3 weeks post RARP

My wife is a wreck since my surgery - depressed and won't talk to any of her friends. She is convinced that I made a terrible mistake having the surgery. It's like we are living on different planets. Instead of being supportive and helpful, she is downright sadistic and cruel with things she says to me. She has convinced herself that I will never be the same as before, our sex life is over and I was selfish for not thinking of her when I opted to have cancer removed from my body. We have been married for 30 yrs and we have been through some rough patches, but this is right there at the top of the worst of times. There do not seem to be many support groups for spouses of prostate cancer fighters, and what she has found supports her thesis that return to normal sex life is unlikely. I had complete nerve sparing on both sides and have already experienced some twinges of hope, if you know what I mean. I can't wait to poke her in the eye with it one day soon if we make it that long. Just wondering if any of you have had similar experience and how long it took for her to come around if ever?