I'm going to call out my long-time friend for not making time for me.
Have you had issues about things like this in the past?
Yes. She told me she doesn't have time to hang out with me anymore.
It can feel hurtful when friends reject you; especially long-time friends. But if your friend has told you she doesn't have time for you anymore, it would probably be more productive to just drop the friendship instead of calling her out. Calling her out won't change her mind, and it will just cause a fight between you.
I bet 10 bucks she will come back to me when she needs me.
I think that you might be right. I would tell her that if she wants to stay friends with you, she should try to make just a little time for you every once in a while. You should want friends to spend time with you.