[mironicus]

If you just reduce the characters to one character trait, then you may be right that Sena seems to be kind of masochistic. But most of this conflicts are just fooling around and playing. But if things really gets serious it's Yozora who runs away crying from reality.

And Yozora herself says that the things that happened in the past are more important for her then the present. Everything she knows about Kodaka is just in the past, she doesn't even know his present self very well and she does not seem to be interested in it. So what are Kodakas hobbys, what are his interests? She never asked him, she does not care. Even on the date in Vol. 7 they only talk about things that happened in the past. Sometimes she opens up a bit but mostly she talks about her own personal problems.

The only things that Kodaka learns about Yozora in her present self is how she treats others within a group. Kodaka himself is a kind person who tends to help others in need. He cares for her in a way that he somehow wants to help her to get over her friendship memories and to live in the present. This is also what Sena criticizes on her and she is the only one that says things out and straight, while Kodaka can't talk so freely. So the others really care for her, but if she always denies it and she runs away, it can't be helped.

While the others start to step forward, she will be all alone at the end. The club is able to form friendships and couples but the original intention for Yozora forming the club just failed.