You claim he'd be giving up all his sources but snooping doesn't always have to be covert. The next time she tries to assure him verbally all he has to say is "Let me see your phone" and if she hesitates, he knows all he needs to know. Waywards are transparent once you know what to look for. When they demand privacy...they are wayward. When they defend their behavior...they are still wayward. When they blame you for their choices...they are still wayward.