My best friend's brother died in a car accident, and the family preferred boys to girls. I want to tell her that I love her. What should I say?

Hello, since you have so much to worry about, it goes without saying. You can talk to your best friend in private. Tell her that you care about her feelings. If you want to talk to you, you stay with her.

Just let her feel love, there is no need to tell more people.