You need to confront both your boyfriend and your best friend and hope that nothing is going on between the both of them
realize he isn't a good boyfriend and dump him
You should break up with your boyfriend and get your best friends instead
Nothing because he is your ex boyfriend.Being your ex says; he is not your boyfriend anymore. He is not cheating on you and so far only fancies your best friend so is not in any relationship with her. Your best friend will know why you broke up and will use her knowledge of this in deciding if she will take it any further with him. There is nothing you need to do.
Tell her your a true friend and tell her the truth. Do you or do you not.
Best friends they are always gonna be there for you
your friends boyfriend will breakup with your friend, and your friend will get mad at you.
Well think of it this way: Who is more important to you? Your best friend or your boyfriend's friends?
Your question is incoherent.
Keep an eye on how he acts around you. If he acts a bit strange around you then there is a possiblity he fancies you. Or it could be the opposite! Talk to your best friend and see if he/she knows if their brother fancies you. If not you could try talking to him, but you probaly won't get much out of him! Good luck and I hope that helps! :D
switch boyfriends.
Dont get to worried about it. Just let it go the first time and if it happens again say something to her
Answer All you can do is try and get him to believe you. "Best friends" are good at manipulating their friends and it is always for their own selfish reasons - not for the best interest of their friend. It happens all the time and all you can do is your best to convince your boyfriend of the truth. They always find out eventually when someone, like a best friend, has manipulated and lied to them.