My girlfriend was my best friend for 16 years and know we might have a baby so i'm not completely sure if it is but i'd say yeah probably but if you stop being mad at him he just might want to go out with you you know what I mean...?
friends are like family. will you date your own family member? think about that. and if people have sex with their best friend, than everybody in this world will be bisexual. think about that too. peace!