I can't move on,I have to apologize one girl I still care about,should I apologize to her?
Apologize to everyone, I don't know what you did, but always apologize.
If I told you no, would you seriously not apologize to her? Doubtful. So stop asking this question, and just do what you feel is right.
Apologize to her she may be hurt and you could lose someone you care about. Hope this helps good luck!
If it cause regret in you then by all means apologize to her.