Help!

There was this one yaoi where the protagonist was in photography club, on capmus he noticed someone who was confused so he offered to help the guy out, they became friends and the guy also joined the club after a few days later the antagonist developed feelings and confessed. One day, the protagonist said he wanted to go back to his hometown to “take pictures of the place” I believe it was (can’t remember) but then the protagonist then told the antagonist later on that when he was young, he met a guy at a house him and his friends use to go to, but only he really knew the guy and they hung out quite often. But one day after he went again, he saw the guy with bruises and was having sex with another guy, the protagonist thought he was getting raped and abused and had to keep his mouth shut. He tried telling his classmates but none of them believed him, but later on the protagonist found out that the antagonist was brothers with the guy he thought was getting raped and abused from when he was little, the antagonist then explained that when he was younger his parents were abusive so his older brother ran away with his boyfriend and NOTHING of what the protagonist thought was real. After it was clear the protagonist went to check on the antagonist to see if he was okay, but the older brother, I think, answered the door. THATS WHERE IT ENDED SO FAR AND I APPRECIATE IF U READ THIS ALL.