Marle,
Coming to this a little late, but always want to check on your and your updates re you and Megan when I do get the chance to get on SR.
This all sounds familiar. My RAD's addiction started with an eating disorder and then bounced all over the place. I think she still has to fight the tendency to fall back there.
Just know that I continue to keep y'all in my prayers. You are a wonderful example of staying out of her recovery and letting her find her own way. We all know how hard that is.
Hugs,
Hangin' In