Hopingforhappening, welcome to the forum
You are the only one who can decide what is good for you. This you can discuss with your ex-boyfriend and tell him about it. That way you leave it to him to decide for himself. To break up because one is hurting his partner is not a viable reason. That partner herself should decide whether or not a break up is what she wants. (If there are alternatives existing she can emotionally handle).
So, this is what I advise you to do:
DO talk about it with him (only if you are 100% sure you don't care. not only not now but also not later in the long run) and ask him if the breakup is something HE wants, because you don't.
Good luck
