There is this guy we dated ones but now he wants to be just friends and my exs wants me back help please?

BUT KNOW HE SAYS HE OLY WANTS TO BE FRIENDS CAUSE HE WORKS ALOT AND DOSE NOT HAVE TIME FOR A GIRLFRIEND. THE THING IS I LIKED HIM AND WANTED TO GIVE US A CHANGES. I TOLD HIM FINE WE COULD BE FRIENDS. HE SAID I COULD CALL FROM TIME TO TIME. SO WE ARE TALKING AS FRIENDS. NOW MY EX"S SAYS HE WANTS ME BACK THAT HE HAS CHANGED AND I TOLD HIM I DID NOT KNOW CAUSE I DID NOT WANT HIM TO HURT ME AGAIN HE SAID HE GETS IT. SAID HE HAS CAHNGED HE IS GOING TO CHURCH NOW NOT EVERY SUNDAY BUT HE GOES. THE THING IS MY MOM HEATS HIM SAYS HE IS NOT WELCOME IN HER HOUSE ANY MORE HE PULLED A MEAN JOKE ON ME HE TOLD ME HE DIED AND HAD A PHOTO OF HIM LAYING DON PLAYING DEAD. ANYWAYS PAT OF ME WANTS HIM BACK THE OTHER PART SAYS NO I WILL ONLY GET HURT AGAIN. PART OF ME WANTS HIM TO COME DOWN AND TALK TO HIM AND MAKE SOME RULES UP FOR HIM IF I DO TAKE HIM BACK BUT WHAT DO I SAY AND WHAT RULES SHOULD I HAVE. MY MOM SAID SHE CANT STOP ME FROM TAKEING HIM BACK BUT HE CANT COME IN THE DRIVE WAY.