Douglas was getting older he learned to appreciate life, after a few bad relationships. Never put your happiness in the hands of others That's your responsibility that's what he told himself. He loved people who didn't love themselves and they would mess with his mind making him hate himself because there was nothing he could do to please or make them happy.
Eventually he went cold turkey and walked away from these people that would make him doubt himself and his judgment. The friends he had would bad mouth him but this bad boy rep did him some good more than damage.
Also learning friends, don't talk about you behind your back. He respected them enough to say it to their face. His honesty would **** people off but it was out of love because he cared.