It occurred to me....Fredo “identifying” and siding with Greene because Greene said he did the Corleones a favour and took Fredo in when the Corleones were having a bad time
After all that Greene had done for the family
and Fredo, Michael is now pushing Fredo's good friend Greene out
No wonder Fredo was so upset
Mike! You don't come to Las Vegas and talk to a man like Moe Greene like that!
