Bradley/Stacey (May contain spoilers)...

[Lizzie Brookes]

The thing is though to someone who doesn't have the insight we do, she might think the affair isn't over. If she sees them talking, even innocently, after watching that she may think it is still going on. Even though in the tape, Stacey makes it pretty clear it is over, Lauren could easily think otherwise.

I was just thinking about that again. Someone older than Lauren would probably see from the way they are talking that it is no longer an affair but back to father/daughter relation - there are always subtle clues - but even Lauren must know that nothing happened while Max was in Spain or while Stacey was on honeymoon.