What should I do about this friendship?

So I have a friend, who is pretty new but I love spending time with them. But for somedays they have been neglecting me. No context has been given. They always priotise their bestie more. Since I know that person is important but it doesn't make sense that you make a friend just to neglect them afterwards for your bestie.
Like I had a misunderstanding once with this person, hurting their bestie. Which was unintentional, now they be putting all blame on me.
And she even got mad and ignore me all day.
And she doesn't care that I cry after being left out.
I find the superiority and inferiority in a friendship very hurtful.
Both parties should get equal level of commitment. Not because you are closer to one person you get the rights to hurt other friend feelings.
What should I do with this friend of mine?
What should I do about this friendship?
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