Well, is nothing new that shes not right in the head at all. Until we find her reasons she only seems a psycho spoiled rich girl.
Dont even know what to say about that scum... the fact he thinks trying to rape her wouldnt be a decisive reason to never be near her again says it all of what hes made off.
Yuki boysh trap is not something casual. It is something that she has to overcome. But really, the rest of this people are completely nuts.