Lena doesn't make a big deal out of it but she does recognize what Robert was trying to do. This is when she fully shuts down his attempt:You say that the proof is there, But where does Lena say in the game that she's being blackmailed by Robert? Never mind say it, where does she even hint it? After all she's the person you're claiming Robert is attempting to blackmail. Wouldn't she be making a big deal about that? Somewhere?
Python:
r "You're not gonna find many guys who would take a punch to the face for you, you know?"
l "Maybe that's not what I'm after."
r "Okay, okay. Suit yourself."
"He turned around and went to take care of his work."
"It was clear Robert wasn't pleased with my answer. But I didn't like his antics."
"He had tried to bait me into going out with him by withholding some kind of important information..."