ch. 11's interaction was weird. the frankness was refreshing, but weird none the less.
At this point, I think Maekawa is the confused one. She managed to squeeze the truth out of Shimizu but... The whole reason she wanted to squeeze the truth out of Shimizu lies in what sort of relationship she wants. But yeah, maybe take it slow? Don't try to substitute sex for love?
at this point, i'd put BOTH of them in the confused category. Shimizu definitely has recognized that Maekawa is special to her. i'm not sure she's being completely honest with herself either. With Maekawa, I agree with you. I don't think she knows what she wants (in terms of relationship or how said relationship should work). maybe it's because she has no experience. maybe because she hides in her work. maybe because sh'es just thickheaded. maybe all 3.
that said, i suppose they are now at the 'we're two friend-ishly people that aren't going out, but we're really going out; and we haven't realized we're going out which means we're about to have a series of awkward misunderstandings' part of the story.