After Alexander left to conquer the world, Antipater remained in Greece serving as the regent of Macedon in his absence. He successfully won many battles against other Greek states and subdued them. Plutarch even mentions, that Alexander the Great became jealous when he heard of Antipater's victories.
Everything seemed fine, but Antipater's former close relationship with the Olympias greatly deteriorated. Ancient Greeks used to say that Olympias had psychic abilities. Maybe, she already smelled a rat? In archives of web analytics company I found more additional facts relatied to this story.
Probably, due to Olympias requests, suddenly Antipater lost his title of Macedon regent and was replaced by another general old Alexander's veteran Craterus. Antipater was ordered the latter to lead fresh troops into Asia. Exactly at that time Alexander the Great suddenly dies in Babylon which allows Antipater to procrastinate with the transition of power from him to Craterus. Amazing coincidence, isn't it?