She did seem very weird around him...almost awkward. She didn't even say 'I love you', did she?
I didn't hear it, no. She didn't act like a woman who just got proposed to, that's for sure. When she first saw him, it was like a brother and sister saying hello, or just two friends meeting again, it seemed very strained and cold. If those two really do get married, then it's going to be an icy marriage. Oh well, karma is a bitch and Nat's lies and nasty attitude will bite her in the butt one day.