It's not fair :'(

My sister's best friend Nicole is really really sick.
She just had a baby boy on Thursday and I guess she was bleeding internally and they didn't know.
Everything seemed okay on Friday, and yesterday morning my mom texts me saying that Nicole has a blood clot. I was worried but it seemed like she'd be okay.
Then a few hours later my mom texts me saying that she had a heart attack :'(
I wake up today to a text saying that her heart stopped a few times during the night, and if it stops again her family decided that they're not going to revive her.
Now I hear that she has other organs that are failing.
I just want her to get better, it's not fair :'(
I love her and I was so happy for her all of last week and then this happens and now it's just awfulness and awfulness piling up and it's just not okay. It's not.
Poor Nicole. Poor Riley. Poor Emily. Poor Nyboers. Just WHY?? :'(