Is this relationship an issue?

So i have been dating my current boyfriend for over three years. He has attempted suicide a couple of times but i talked him out of it. He always feels like he is alone since he is a high school dropout and literally doesnt talk to anyone besides me. He is my first boyfriend and i do care for him but i feel like im being forced into the relationship. I want to have the ability to try dating other guys and even bringing up the idea of and open relationship with him or anything like that he gets very upset. And right now there is this other guy i want to try dating but im kinda stuck between a rock and a hard place. What do you think will be the best solution?

Does your current boy friend see a counsellor or therapist? Is he part of a church group? If no maybe urge his to attend more social activities or join a group of some sort. Tell him pick up a hobby so you do not feel obliged to be with him 24/7. Its understandable that you want to date others and you should be true to yourself and your feelings but because the issue involves suicide it is a more sensitive situation. I would let others who love and support him know about the suicide attempts if they do not already know this. I would maybe tell health care professionals if he is threatening to commit suicide if you leave for example. If you decide to stop dating him I would support him like you would a brother because when one is venerable a helping hand is like an angel.