I hate having good days

As crazy as this sounds, I hate it whenever I have a good day lately.

I know how weird that sounds but hear me out.

My crush/best friend has been struggling and been really stressed out, and every time I'm having a good day I feel like I can't tell her because shes having a bad one, like some sort of self-fulfilling prophecy, and I don't want to rub it in.

I love her so much and I really care about her, I just wish I knew how to help her. It feels like I can't breathe anymore, it hurts me so much to know shes upset or that she's hurting. I don't know what to do.