I'm sorry but having been the other girl in a messed up situation such as this, while you and your husband are not your son, it makes some sense to explain a little regarding what may be going on with his addiction. They are probably pretty freaked out and while stealing a credit card to get a flight home (let's assume that's all she did with the card) seems pretty seedy, if she was stranded in a hotel with the scenario she described, i'm pretty sure she was in some type of trauma. Blocking people who might just want to know what's going on is a bit ridiculous.