A girl who repeatedly cheats on her boyfriend doesn't have a clue what love is. When you love someone you are loyal; honest; encouraging and feel you can talk out any problems both partners may have. Some young women are so wrapped up in themselves (perhaps they feel they are too attractive to settle down to one man) or, they are immature. These are red flags and unless a person enjoys a roller coaster ride of heartache they are better off breaking off with such a person.