So if you came clean to her and it was really a surprise... Then she is probably just assimilating all that you admitted to and working through the ramifications of being married to someone who is addicted to alcohol... That's gonna take longer than three weeks I am afraid.
Your gonna have to give it time my friend... She has to work her part of this out for herself... You can't really be much help... And how she feels about it is not up to you.
Relax. Work on staying sober and getting recovered. Give her space so she can recover too... Once she begins to trust you again and sees positive change, one hopes anyway, things will get back on track.
Easy does it...
Mark