If she/he doesn't listen to you, get your other friends to either talk to her/him about it, or hang about with them instead of your best friend until she/he gets the message.
If she/he doesn't listen to you, get your other friends to either talk to her/him about it, or hang about with them instead of your best friend until she/he gets the message.
Show Your Love to Your Boyfriend
Come Out to Your Best Friend Before Your Parents
Stand Up to Your Best Friend
Confess to Your Crush