Most Helpful Guy
You just have to let it go. When he calls don't answer, when he texts don't respond. You already know the routine and you know how this story ends so next time don't pick up the book and start reading. Take control of the situation.
Most Helpful Girl
You tell him once and for all that it's over and that you can't be that person for him anymore because you are the one left hurting. Tell him you're over it and want to move on with your life. Then you block his number and move the hell on! Remember how he treated you when you miss him.
Blocking him is the only way as that gives you the finality that you need in order to realize it's over and done with and that you can't go back.