My father once told me to tell my exBF to go and date whole bunch of women, preferably one night stands. My father said the my ex will quickly forget about me.

Badger, next time he calls, give him permission and encourage him to date whole lots of other women out there. Turn around the control right back into his face. And tell him that the new women would be far better than you.

Take care of yourself first. And +1 with what everyone else said.