Do not force someone to stay in your ife. Let them leave. If he loves you, he won't leave you. If love isn't there anymore, if he doesn't want to fight anymore... Set him free.
“If you are emotionally hurt and you need someone to heal your wounds, who will you choose? The one you love but takes you for granted, the one who loves you but never had the chance to tell you, or the one who came back from the past that you have long forgotten?”