Native English Speaker please help me?

What does he mean by " I called it"? I sent him this message: I was texting you to apologize beacuse I m not going to be able to hang out with you this saturday. I m back to school this Monday and I m going to really occupied these days. But, I was hoping that we could go out next Sunday instead ?!... show more What does he mean by " I called it"?

I sent him this message:

I was texting you to apologize beacuse I m not going to be able to hang out with you this saturday.
I m back to school this Monday and I m going to really occupied these days. But, I was hoping that we could go out next Sunday instead ?! 😢

And he said this:

Haha no worries. You have to admit I called it though. πŸ˜‰πŸ˜‰
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