Not debating the sim card/phone thing.All of that is true to how things work
If you look at the snippet of the convo with highlighted areas (bottom of page eleven) it explains what I'm saying. It's just something she said "after the fact" that I am referring to. I feel that people use 'after the fact" when referring to some sort of event, the fact being the event and you have hindsight "after the fact". It has always just been a weird gut feeling of mine that she was letting something slip during her response.
With liars you have to look for the little things in your conversations with them i learned that first hand with experience. My pathological liar of an ex boyfriend made casey look almost honest. It was always this little slip ups in our conversations that would lead me to the truth. Just mho and a gut feeling.