Why won't my ex change his fb status?

We broke up in December. He got a girlfriend a week later after we broke up. Since then he doesn't mention her or post stuff about them. He still has everything about us on Fb like pics and posts. I know he's on there all the time cause my friend has him for a friend, and he still has all my family members as his friends. The only one he removed is me from his friends list. Not even his girlfriend is on there. He use to come and visit our daughter, but he recently moved back to his hometown and not even then did he bring her around. He would just park her car on the other side of the building and walk over. What was that all about?
Why won't my ex change his fb status?
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