What do you mean by BFF?

Its OKAY to speak up, Just tell her in privet maybe if your more comfortable with that, If you don't like to talk to her FACE to FACE then just send her a note on a peice of paper, E-mail, Facebook...

If your bff is being mean to you, it is probably for a reason. I think it would be appropriate to be perfectly honest with them and ask them.

Probably depends on the context, but it sounds like someone was texting to her "Best Friend Forever, Jill"

Best friend forever

bbf means bye bye friend bbf means bye bye friend bbf means bye bye friend bbf means bye bye friend bbf means bye bye friend bbf means bye bye friend bbf means bye bye friend