So ive been trying to think of something?Do yall think pheobe and cole coulda had a future if he had told her the sumber was trying to take over him in the first place?

Kind of... I do think they could have found a way to save him if that'd been the writers' intention. They could have still saved him later on in season 5 if they'd wanted! But they were trying to write him out, that was the entire point of his story line, so maybe without that there wouldn't even be a Cole-Source story.