Abetting of suicide

I am 28 , currently very scared what will happen to me if my friend(female) commits suicide. She is very sad at the moment because of following reasons : 1)Her orthodox family and situation of brother who's having bipolar issues. 2)Her professional life , where shes been in Performance Improvement Plan (PIP) twice in two different companies. 3)Trust issues with me , which are dated back to 3 yrs old (2013-2014) 4)Her personal health issues. She holds me responsible 25% for her current state , as per her I missed telling her important details on time and she feels being used and hopeless for her life. She is introvert , has very less friends and has a habit of screwing up things easily. We had a friends with benefit relation back in 2014 . I never promised her of marriage and also never forced her for anything. Post that she moved to different city.After her movement to different city and change of company we have met twice only. I was careless in my age 23-25 and did note take things very seriously. There are certain words and actions which she feels I should have told her on time , I did not have any bad intentions for her and I tried to move forward in my life when I got wisdom after she left city I tried moving away from her and wanted her to start her new life again. Things did not go smooth her in perosnal life and have now become worst as she is thinking to commit suicide. I have been trying to console her and make things right by making her positive , but things aren't working fine now. I also belong to orthodox family and cannot share this with any one in my family .