Why wont my cancer ex leave me alone?

I dumped my cancer ex years ago because he was a liar moody vindicitive selfish ahole who ripped me off. i got a restraining order against him because he could not believe i had audicity to dump him. this morning he called me to let me know it was his birthday which personally could careless. first off i dont know how he got my number since i changed it. secondly i told him i dont give a flying phock about his bday and quite frankly he was a waste of sperm then i hung up. Im a pisces btw.