Dream About Car Accident With Ex Bestfriend

my ex bestfriend (she was my ride or die person and we used to do everything together) was with me for some reason and insisted on taking my car by herself somewhere even tho i didn’t want her to and at least wanted to go with her… well i was waiting for her to get back and someone comes inside with a rlly sad look on there face and they didn’t even have to say anything before i ran outside to find my ex bestfriend crushed by a car accident in my car. I ran over to her and hysterically cried on her dead body until someone had to pull me off. the dream lasted for a long time after that and i could never be happy again and just kept crying over everything. this dream affected me for the rest of the day after i woke up.