I can see why people would be mad that kiyohisa was hostile towards haruto but it was already explained that alphas get possessive after pairing. Kiyohisa also was shocked by how he smacked away haruto's hand. But those times where the pregnancy captivity and in the church, I feel like kiyohisa had a right to be mad. It was a messed up situation and felt like he was separated from his loved and his child due to haruto's reasons and family. Anyways there's a limit to how much I can feel bad for a character like haruto. I can see how some readers tend to take the characters side and defend them constantly just cause they relate or feel bad for the unrequited love character.