We all know that "it doesn't feel productive"! It's counter-intuitive to what your heart is telling you. You can't change his mind with your words. Period. Get support here. These people know what they're talking about. Don't trust your emotions right now...you know what kind of emotional state you're in right now...right? We all can relate to it. Stay here, and learn and get support, and talk to others.
"Always go straight forward, and if you meet the devil, cut him in two and go between the pieces." - William Sturgis, clipper ship captain, 1830's.