I was thinking back to the first episode when Mark nearly ran over Helena in the car park, providing a confirmation “oh hey he really doesn’t recognise her”.

Knowing what we do now though,

1. Did Mark not realise that he nearly ran over one of the Lumon leadership? He acts as if she was just some random employee.
2. Why is Helena walking to an old car in the outer reaches of the car park when she is so senior and tends to get driven around? (Maybe the flowers she’s carrying are a clue?)