I thought the ending was too happy ending. I wish she had chosen one of them. It doesn't matter much to me whom in this story for some reason. XD Since, (There may be some who'll dislike this..) I sort of like Shizumasa too. (Argh, I'm as indecisive as Haine!) X3
I think it's natural for her to be confused though. Aside from the obvious part where she discovers the man she loves are actually two men, she's pretty young too. :3