I've come to realise that every little appearance that Ayu has (however insignificant when going through the arcs of other girls) is actually a slow but steady build-up to who she might be *Opinion based off someone who has never touched Kanon before till now*.
There's no denying Kuze is hateable, mainly because he's not looking at things from a third-person POV, unlike us viewers. You can be somewhat disgusted with his attitude, but eventually what he wants to do to Mai is mainly due to the fact that she never denied that any of the things that happened were her doing and his probable eagerness on keeping order in the school as a student council president.
Just random thoughts from Omni's Kanon2K6 entry since I don't understand RAWs. Don't mind me too much.