Layla.
This is not simply your issue. It's an issue for all of us. You're failing to see the larger picture. The Dark Lord's detractors cannot be left at large, particularly when they pose a threat. Your hesitance to admit to yourself and to me that one of your friends fits that description does not change the facts. Do deal with it, and know it will be dealt with regardless.
Do not tell me what I will and will not do. And do not bring your suspicions behind wards to me when it's necessary information for the group.