Seasons 3 and 4 I'd keep pretty much the same. It's only Season 5 I'd change. I know some people think that Cole was unforgivable da the time he'd become the Source, but I disagree. It wasn't as if he'd done that deliberately - he'd tried fighting it.

I'd start off the same way. Cole returning from the Wasteland, trying to win Phoebe back because he still loves her, her unable to accept him because she doesn't trust the effect she has on him. That's realistic. Then he'd back off, try to just prove he can be a good person. Try to just be a friend/ally if he can't be her lover. Maybe I'd still...

Cole: te have no idea what you're getting yourself into.
Phoebe: Neither do you.

Phoebe: "I'm making la minestra, zuppa for Cole, he'll eat it in a bowl. I guess that's my new role, just making la minestra, zuppa for Cole."

Cole: Uh, Phoebe?
Phoebe: Cole! What are te doing here?
Cole: Well, I got a call from one of the tenants saying that, uh,
Wonder Woman was terrorising the landlord.

Cole: I'm a one woman demon.

Piper:"You were at Cole's all night?
Phoebe:"Uh huh."
Piper:"Did you?"
Phoebe:"Uh huh."
Piper:"Was he?"
Phoebe:"Uh huh."

(when cole and phoebe are fighting and he lands on superiore, in alto of her)
Phoebe: If te wanted to be on superiore, in alto you...

Once upon a time on an ordinary day
I met this guy who came across my way
He was the only one I could rely on
How could I know I was living in some kind of fairytale

I thought he was mine forever
I thought we ought to be together
Guess I should have seen this one coming

‘Cause I’ve been crying
And I’ve been dying
When I think about the Amore we made
While I’m trying to hide the tears on my face
I wish I could turn back time
I wish I could make te mine
Once again we would be innamorati forever
We were meant to be together

Now I’m spending my days in the hell te create
No matter what te do, all te ever...