Rena wanted to ask Brian that directly, why would Brian hide this big thing about Elise from her? But if she did, Brian would know that she had investigated Elise. If that happened, Brian or Elise might be more wary. And their investigation into the existence of the Two Elise will be very difficult. Because Brian will definitely hide all evidence.
Rena thought, Brian would know what Elise had been doing. That man must have known the secret why Elise didn't have a cessar scar on her stomach. So, what should Rena do now?
Rena kept thinking and she came to the right conclusion. Just like Aiden's suggestion, Rena must supervise, investigate and look for evidence in Brian's Mansion. Maybe Rena will find something important. And regarding Jonathan's case, Rena will keep it and hide it, as well as be kinder to Elise.