ok, I am going to try to be sensitive and just throw up some examples of why this is wrong. People especially mentall ill people do this alot. Dump on a loved one and make it their problem Usually that loved one isnt equipped to really do anything. Sometimes people just need someone to listen. But once you realize just listening wont fix it you need to refer them to someone who can. If they wont get help you can't help them,,,,, Let me give you an example,
Lets say the same friend calls says her car is broken. You are not a mechanic or have any clue how to fix a car. What can you do ? You tell her to take it to a mechanic.... A mentally ill person calls you, you are not trained or equipped to handle this. There is really nothing you can do but provide a sympathetic ear. The friend needs to find a mental health mechanic..
Just like the friend with the broken car. YOU can't FIX IT. It;s not your fault you can't fix it, it's not your responsibility to fix it, and you can't let their broken car become your problem. Report the problem to someone who can fix it if the person wont. School counselor, police, social services suicide hotline, something. Make the call. Worse that will happen is a trained professional will say she is ok, and your friend gets a little pissy with you.