no
Not surprised.
Well, English is not my native tongue to begin with and i'm not a specialist of English expression. Because i'm a nice guy, i did check what you said mean and yeah i already know going against Eiko/Sensei ship is a lost cause because it's the main ship Author is pushing (for some reasons since Hana is suposs to be the MC) buuut I never liked this ship and it's the only ship I really hate.
That's tsundere 101, it's like you haven't seen one before. The 3 dots before the "I see" wouldn't be there if she was relieved, she was disappointed.
Or she know that Eiko like to come wherever she and Kamu is and is surprised she won't come even when the two of them are here.