Ask your friend if she's seen your crush staring at her or something like that...this next suggestion is terrible, but maybe you should ask him if he likes her....?
if s/he is pretty much only around you when your around the best friend
If your best friend doesn't know you like your crush than tell her how you feel about it. what you can also do is tell your friend that you liked him first or tell him to decide between you two. or you can also share him. or you or your friend can move on.
You don't.
if there is a chance of your friend being with their crush back off if there is not or only a small chance or their crush likes you then tell your friend i told my best friend she was fine with it i mean its only a crush its not like they are actually dating
flirt with her then be bestfriends, then tell her!... to be her best friend act gay! ahha jk
Just tell them
you should propably tell you best friend that is a girl she can help.
Well you can tell your best friend to tell your best friend to tell him or you can be brave and go up to him and say i dont know how 2 tell u this but i like u. i'd go with the friend 1.
Tell them might be a good strat but you might want to give them signs.
First I would figure out why your best friend did that. Then I would tell your crush what happened and that you really like him.
get a new crush You tell that friend that you like him, and if she goes after him, she's not your best friend. If she backs off, then you'll be ok.
act like da good friend you are tell ya friend.jelousy is a dangerous thing dont let it consume you
you tell your friend to tell him she don't like him