From a slightly different perspective, I tried to look after a friend who tried to kill herself. She was only 22. She wasnt talking to her parents and had few 'destructive' friends, so i decided to keep an eye on her myself.
The short version is that it was a big mistake (read my journal for more info) I cant stress enough how much the replies above are right. Please focus on yourself and let the guys parents take this on. I cant say for sure, but he sounds very controlling and 'focussed' on you in an unhealthy manor and you dont need this in your life. If he loved you that much he would not have told the councillor what he did, or threaten to kill himself. To do one of these things is bad enough, but both?
On the subject of getting yourself help, please dont put the idea out of your mind. I cant tell you how helpful it can be to talk to someone about the stresses of life. I know your hand was forced and this in turn has likely led to a bad experience of this, but the person you are seeing is at school (is that right?) This has meant that everyone knows and its 'too close' to a life you are trying to struggle through, making going through the daily grind even tougher at school. Could I suggest maybe seeing a councillor outside of school? That way its not in everyone elses view - nobody has to know

Im sure the school based councillor would back away if they knew you were seeing a professional elsewhere? All you need to do is see your GP and get referred.
I hope some of this is helpful to you. Keep fighting on, and try to forget the ex. Remember the good times and see them for what they are: the past. He may have loved you once, but he clearly doesnt love you now.