Unprofessional/ Unnecessary?

JUST WANT SOME OPINIONS 
So, Im scheduled to open tomorrow but earlier today I found out I had strep; so I called in & said I was unable to come in. About 2 weeks ago, I tried getting tomorrow off because my brother is graduating from college & I wanted to try and make it, but it wasn't that big of a deal if I couldn't so I wasn't worried about it. 
About half an hour later, my boss calls me back and accuses me of lying. He asked me if I was sure there wasn't another reason I couldn't work & I said I was positive. 
He continued to push about how I have an 'adult job and need to make adult decisions' (I literally work at target & im 16) and that he just wants me to be honest with him. 
Again, I continued telling him how I really do have strep and that I could bring him a doctor's note if needed. He said he 'didn't need a doctors note he just needs me to be honest' and continued guilt tripping me into working tomorrow. 
Long story short, I'm going into work at 6am with a 102° fever and no voice. Opinions? 

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