I almost always say "She's a drug addict, and she's struggling." and then I ask them to please keep her in their prayers. that's my biggest motivation for telling the truth when people ask. the more people praying for her, the better. Some dont' know what to say and others are more comfortable with the subject. I do find that sometimes if i talk too much (too many details) I find myself getting down/negative and then I just say something like, "I know she will get clean one day." and try to change the subject.