An angry man. He’s been angry since Syd left the band, and even though he hired Gilmour to replace him, he’s resented Gilmour all along for having to replace Syd.
Syd went crazy having to be around Roger?
And Gilmour was the one who took care of Syd, made sure he got his money, and was taken care of. Dave’s a good guy, probably just as Socialist as Roger, though.