U,

DB principles state to not initiate R talks but if she does just listen and validate. Don't get defensive and try state your case. Just validate her feelings. If she bombs you just say " I understand that you feel that way. I don't want a divorce but I won't stand in your way". Then get out of the house and cry, scream, break stuff whatever you have to do.

I feel for you man but I promise you right now you are in the eye of the hurricane. The storm will break and the sun will come out again.