It just doesn't add up and I think you are right to be suspicious. My suggestion would be to tell her you think her behavior is odd, explain to her why you think it's odd, and ask her if something happened that she is trying to hide. I would also confront her about the tracking info that shows she went somewhere she didn't tell you about. Put all the cards on the table and give her a chance to explain. Set a boundary- no more turning the phone off, period. Don't let her lie her way out, hold her accountable.
