Ah I regret seeing the spoiler, the biggest one at that, now i cant continue further. My fault for being so curious.. Niki
Actually, I think this makes the story better. He loved him so much, he literally sacrificed his own happiness to protect him. Specially since it sounds like the uke's father was abusive and the seme didn't want him to suffer more because of him. It's sweet!
So was he in some sort of contractual marriage?