Being drugged has nothing to do with her sobriety. It's not a narcotic. She's not going to relapse because of the drug she was given. You don't relapse after taking a vitamin. There is a valid point of mentioning sobriety when they were drinking, since you were the one who wrote it in your post. If she relapses it will be because of the traumatic experience, not because of the Rohypnol. I hope charges are brought against them and they spend time in jail. It's an awful thing to have gone through.