God Father I,II, and Coda (GF III) are on a loop on one of the streaming stations and I turn it on for background noise as I tidy up.
So, I was watching and trying to understand the relationship between Hyman Roth and Michael Corleone.

As they began to negotiate for a Casino in Cuba, did Hyman Roth already know the gig was up and the rebels would win?
In other words was Roth cutting his losses by selling out of Cuba at a critial time?

Why did Roth tip his hand with the in depth Moe Greene story? Didn't he at that moment accuse Michael of the murder and seem willing to forgive and forget if he brought him the two million dollars?

Why did Michael have to murder Hyman Roth?