Worry

It's understandably a difficult situation, because you feel cutting the friendship might have a bad influence on this friend. You should know that you're not in control of the actions of someone else and at all times he or she is responsible in the end. You are never the reason that someone wants to hurt him or herself. It's a mental state that makes you think hurting yourself is a solution.

So to answer your question, you will never get in trouble. But it's understandable you feel responsible. The only thing you could do is advise him/her to find help. He/she could for example talk to one of the professionals at 113 suicide prevention.