How would you feel if your friend stole your best away from you?

my friend stole my best friend away from me. they started to talk on facebook. the friend and i hd a fight on facebook. the friend did not ADD me on her top friends but add my best friend. the swearing friend and i did not talk for 3 months in the summer so i deleted their aim sn and PHONE number , email, and facebook profile did i do a good job? i don't want angie ( my bff ) and elaina ( the swearing name caller) to be friends. elaina took her away from me. i did everyting to stop their friendship. i dont like that. SHOULD IUST CONTINUE WATCHING LIKE THIS ? they left me out and talk too much