Why would Superman destroy an expensive military satellite and gloat / threaten about it right in front of a General?
Why would Superman eviscerate a man's truck with telephone poles simply for clandestine revenge?
Why would Superman take Zod away from empty farm fields and fly him onto Main Street Smallville to fight him there instead?
Why would Superman take the time to kiss Lois in the middle of ground zero for the destruction of Metropoplis while dozens or hundreds of people must have just minutes before died all around them, or may still be buried alive?
Yeah, in case you haven't noticed by both his actions and his looks of disdain, this Snyder's Superman is really kind of a dick. If I were Batman I'd want to kill him too.