You can't just judge whether a person is a playboy or not. Since she will choose to separate, it also shows that she is stubborn and stubborn.
If you are her female friend, I think you are a person who cares about your friends very much. You can have a heart-to-heart talk with her, such as what kind of person she needs, or help her exercise a stronger heart.
But personally, I prefer that you are her male friend? I want to go out with her, but I'm afraid she will break up as easily as before.
If so, I think you need confidence first. Girls like confident boys. On the one hand, you should make sure that you are good enough to attract her attention. Although most boys don't care much, it is very important to talk modestly and confidently. Even if you don't pursue it, it is also very important to shape your personality charm.
I hope I can help you.