Sorry, I haven't responded earlier....I read this and was putting some thought into it.
I'm sorry to hear this. First I'm going to say something that's going to be hard to swallow....stop saying things that point blame at HER. I know you feel she's let it get to this point, and I understand that, and it's soooo hard not to say that "she's the one who let it get to this point"....but saying those things...just pushes her further away.
2nd...DO NOT LEAVE THE HOUSE! 3rd...Tell her you want HER, YOU are willing to do whatever it takes to win her back....and then ask for some time, a year or so for you to really let your actions show what your words tell her. After this, do your best to avoid R talks....and take action. Show her you are the man of her dreams. Spend time w/her (just the two of you)...of course do family things too, but make sure the two of you get your own time together....even if it's literally just taking a walk at first to begin to reconnect.
This does not have to be over, but YOU will have to be willing to give it your ALL. And sometimes that will mean keeping your mouth shut and letting your actions speak for you. Are you up for that?
Your W doesn't really sound to me like she's finished with this.....yet, so there's still an opportunity to turn this around, but YOU will have to be willing to take the lead and really do some work that won't be easy for you. I might even suggest....finding a new C.