I'm looking for a shounen ai (or maby yaoi) that one of them (with black hair) was in love...

I'm looking for a shounen ai (or maby yaoi) that one of them (with black hair) was in love with his older brother. And there was another boy (with blonde and almost long hair ) in his class that was in love with other boy. And they start a relationship and at last chapter that i read the blonde boy found out that the black hair boy is in love with his brother they had a fight and the next day when the black hair went to the school noticed that the other boy actually cut his hair.
I know my explanation is really bad. But it was ongoing when i read it and I'm really curious what happed next. So please help me of you know any manga like that. Thanks