Why haven’t my coworker apologized to me?

My coworker who is also my friend told me that the night shift worker was spreading a rumor about me but she told me not to say anything because she didn’t want to start drama.

I didn’t listen to her and i went up to the supervisor about the rumor and questioned him. And there is a rumor going around it’s about a woman who has the same name as me but it’s not me. So the night supervisor cleared up the confusion with the person who told me about the rumor and told her that it was about another girl with the same name as me. She told him she would apologize to me for the mix up but hasn’t said sorry yet… it’s been 2 days and she hasn’t spoken to me either
Why haven’t my coworker apologized to me?
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