Would you forgive this girl and give her another chance?

If last semester (5 months ago), you had a crush on a girl in your class. She gave you a lot of mixed signals and you felt liked she played with your emotions and lead you on. You thought she acted in a snotty princess. However, you had a huge crush on her before you felt like that.

If you saw her months later, and she said Hi to you and tried to have a conversation with you, would you try to be her friend? Or would you just blow her off and walk away because she's not worth it.