What can I do to help

This is a disaster , I have this friend call sophie and she has had problems , she has fallen inlove with a teacher and she has self harmed , its simple , I have been helping her out , helping her along the way , she is coping well but know her friends racheal and emma have started giving her the cold shoulder again , they started this when she needed them the most , that is why me and sophie have become closer , because I helped her , when her friends didnt , problem , racheal and emma are also good friends of mine and they have fallen out with sophie calling her perfetic , and an attention seaker , I want to help sophie she dosnt want to be here anymore , I’ve told her that what ever life throws at her isnt always going to be easy and she has other friends and people like me that will help her threw it , I feel like im not doing her any good , how can I help her and what can I do to make her friends actully help her along the way , and get them to realise that you cant choose who you fall in love with !!! Thanku :d x