Hi!! I forgot the name of the yaoi, it was about two high school boys, the uke one fell in love first, and the seme takes advantage, the uke's mother I think she has a bit of a mental problem. In summer vacation the uke and the seme go to the beach, the uke lies to his mother telling her he was in a camp with the cram school, and when she discovers that the uke has been skiping cram school she hits him, and the uke pushes her and she hits her head.
The seme is really poor and in the end he falls in love with the uke, and there is a short story about the cat they get when they are older.

Koi no Mannaka

Thank you!!!! 😀 😀 😀 😀