Looking for BL

Uhm so like seme and use are next door neighbors and there’s like a river? Stream? Canal? Between their houses? Or like a place they go to. And I think they were rivals(parents were rivals in business.)

Anyway, so after some time they got together and seme game uke an accessory (maybe a bracelet) and I think seme went on this blind date because his parents told him too and met a girl, but they both didn’t like each other

Fast forward, uke and the girl met, and blabla they went to school and opened a classroom and saw the seme cheating on uke with another girl, uke was sad and upset, later that night he threw the accessory to the river and I forgot what happened next