I agree with what's been said here, but I do have to reiterate. Change your number so he'll quit bugging you. Don't waste your time telling him anything that will just engage him to talk to you more. He wants *** that's why he's lonely and thinks he's made what ever mistake........ Like someone said he's finding out life isn't all what it's cracked up to be on the other side.
Why I'm telling you to change your number is this. 1. it takes away YOUR temptation to talk to him and fall back into the habit of listening to him and loose perspective of all the positives you have in your life. 2. you must be getting something out of it if you don't change your number and he keeps calling you and you need to examine that, what is it that keeps you from NOT changing your number is it an emotional attachment still or something else, lonelyness, or?
Or if you don't want to change your number cause you really are attached to it, like someone suggested a silent ringer to it. So you can just delete them at the end of the day.
Or see if you can block his number?
Good luck and your doing very well. You should be VERY proud of yourself, it's tough coming back from a divorce and it's not easy. Give yourself a pat on the back. TJ