How's the struggle been since you last posted, Thoms?
Good luck with it, for both you and Andi. I also hope the arguments are few and brief for you both during this process. They're expected, as you said, as we all know tempers can run high and be short during withdrawal. I know I become a raging bitch. I just hope you both get along as well as possible while sick.
Come back and keep us updated. Maybe journaling this process will help keep your mind focused and the time pass.
And if you don't succeed this time, don't worry. Getting sober is a process. Two steps forward, one step back, etc. Also, if you both realize you can't do this now, maybe maintenance (either MMT or SMT) is a better, more realistic option.
Good luck to you both.