my friend got accepted to brown pre-college while failing classes

I got my rejection letter in the afternoon yesterday telling me they couldn’t offer me a spot. my grades are good, i’m by no means a straight a student but mostly A’s and a few B’s (and one C, oops) i was devastated by the rejection because i made lots of plans up in my head about going. My friend also applied, but i just assume she had also gotten rejected because i did and i know she was doing worse than me in school. She told me she had a 40 in one of her classes at the time applying and a 60 in the other. (as well as failing other classes) she got her acceptance letter today! i genuinely am infuriated i dont even know what to think. i know its not her fault but wow i am angry!