It depends on how you understood what I said XD in German "bf" can only mean "best friend" but I know in English it can also mean "boyfriend", which I don't have. My best friend is a girl, I know her since kindergarten and I watched Free! with her
Oh dang I thought your bf there, because bf does mean that. And what I know about girls saying best friend for girls is bff, or best friend forever something lol XD.
Osananajimi
But it might be weird watching the anime with a guy lol