Hello there!
They eventually splitted mainly because the relations from the east and the west was no comparison or a resemblance that they had on each other. So, basically, after they split, they would see more formality. And also note this, after the Christian Church splitted, they practically become there own thing. A new pope, and newer ideas. It was pretty much like a new religion, in a sense. These were the affects and why the Christian Church splitted.