This manga reminds me this phrase: "Once a cheater, always a cheater"
I like the protagonist because she decided to move on. Although I think because I have read to many shoujo mangas with a happy ending I feel a hole in my heart because they didn't end up together but I KNOW she made the right choice.
I have to say this in Spanish: ME QUEMA! ME LASTIMA! MI CORAZÓN SE HA ROTO! ┗( T﹏T )┛