Well, this seems like a tricky situation.
Here are some tips and tricks on how you could explain:
Thanks for watching!
tell your best friend but tell her not to tell her bro.
Tell them you love them. It's as easy as that. If you're their bets friend, they'll understand.
you kiss the boy and tell him you love him
talk to your best friend and tell them how you feel. if they are truly your friend then they shouldn't care
You tell him that your best friend likes him too,and tell yo best friend to ignore him he'll eventually love you
Then you choose the one that you truly love. If ou love the best friend then tell the boyfriend. Don't cheat. If you still like the boyfriend then tell the best friend in a nice way that you are not interested.
if you're trying to tell him you love him as more than a friend, your best bet is NOT to do so over facebook. Do it in person.
Just tell her right away!
Give him hint and if he doesn't get it just tell him
Your crazy...and he's your BEST friend! Hell no.
Kiss him.
Don't tell her she is not your friend anymore that will just be easier for her to hit on him tell her he is not interested