friends and death

This isn’t even a dream that i have had, but i am really wondering what it could mean! In my best friends dream she keeps dreaming that i kill her, and she usualy turns blue. Also in her dreams she says i don’t even care and i act like nothing happened. I don’t get why this is happening expecially when we are best friends, and i would never ever do anything to hurt her. They also keep reocurring