thats great news marle. Glad she is doing well in the halfway house , hopefully making new sober friends to spend her time with. When i got clean it wasn't with subs but a lot of people i know(in life and here on the boards) have nothing but great things to say about it, also that its very easy to stop taking when their doctor decided it was time for them to be off it.
You're right, there are no guarantees but you should believe that she really wants this recovery because she is SHOWING you she wants it by taking all the necessary steps to live a happy sober life. Hope things continue on this road, be safe marle ~~~