The answer is: Marianne, Marianne's sister (Elinor), and Edward: "...and she felt particularly hurt.." (Elinor) "...that a man so partial to...(Edward) her sister (Marianne) should perceive that she (Elinor) experienced nothing but grief and disappointment in seeing him(Edward). She (Elinor) instantly saw that it was not unnoticed by him (Edward), that he even observed Marianne as she quitted the room, with such astonishment and concern, ....toward herself.