The funny thing is, that she was way less annoying in her route, once the romance started, than compared to some of the other routes where her jealousy went overboard (Aomi), OTOH, for example in Michiru`s route, she becomes pretty sweet.
In the end I'd say the Mifuyu route was the one I liked the least. I just don't sympathize that much with her preferring to be the victim approach.