i know it hurts as mine did it to me, but try not to take it personally. it is no reflection on you as a person. he simply moved onto the next enabler. he might be lying just to manipulate you.
if you want to ease your pain, try going no contact with him. change your phone number so he can't call anymore.
if you keep talking to him, you can expect your pain to continue, plus you risk getting sucked back in.