Do I stay or do I go?

[anyhope]

Hello All, I'd like to ask if u think it's a good idea or would it backfire if I told h I'm seeing someone. The reason is that he just doesn't get it.. Calls me several times a day and should I not pick up he'll text or mssg me of fb.
I have to tell him the same thing day after day after day and it's just nonsense.