Aye, I’ve read their club president Perez (who seems like a right prick btw) is always trying to make the transfers he wants rather than trying to keep who Zidane wants (apparently it’s Bale, Benzema, and Isco being the main ones).
I know him and Zidane didn’t see eye to eye during Perez’s last tenure, particularly when he got rid of Makalele so he could over pay for more ‘galacticos’ iirc Zidane basically said it’s like putting more gold paint on a car after you’ve sold the engine.
I think having to try and deal with an arsehole like that, while putting up with Madrid’s fans who call for your head anytime you’re down in a game regardless of what you won for them would do your head in. Like you say he’s got nothing left to prove there and it can only really go sour from here.