Who did Zeus not get along with?

His father, Cronus. Cronus was the Titan god of time and one of the most powerful beings in the universe. He was afraid that his children would overthrow him, so he swallowed them whole as soon as they were born. Zeus was the only one who escaped this fate, thanks to his mother, Rhea, who tricked Cronus into swallowing a stone instead. Zeus grew up in secret and eventually led the other gods in a war against the Titans. He won the war and became the ruler of the gods, but he never forgave Cronus for trying to kill him.