PLEASE ANSWER! My friend is blanking me I don't know why!?

It's just a phase. If you start acting the same way that she is acting to you, her mind will see that you are drifting away from her and she will automatically attempt to be good friends again. That's exactly what happened with you. You noticed something was wrong so you immediately tried to fix the problem and remain friends. Its sociology. The problem is you're trying to hard to be friends with her. Make her try to hard to be friends with you instead.