HELP PLEASE HELP PLEASE need revenge on a friend...?

[Saffron]

Well there is a picture of me that i thought everyone had deleted.. everyone had forgotton about it but then i find out one of my total bitches of a friend put it up everywhere as her profile picture and then my other friend did on bbm and she said she didnt but my true friend told me she has so ik she did... i then said to her 'remeber when someone put up that picture of u sleeping and u went mental... its like that but 1000 times worst so im asking u as a friend please dont do it anymore' and she has a massive go at me saying that i blame all my problems on her when i dont... so basically these two people put up this picture of me and one lied abd said she ddint even tho she did... i need revenge... ik that they could get in loads of trouble for it but i dont want that... i want revenge help please xoxoxo