Air's manga / #wholesome(6)

Little bro (mc) going out with classmate who he had originally turned down. Mc noticed his feelings for his older brother/teacher and decided to date uke in middle school. Uke realizes MC loves brother and cut his hair that he has been growing since they went out. MC thought it was the ending of the relationship. Uke cut hair for change/to understand the loneliness (he liked his long hair) of the MC. HAppy end when they make up and MC realizes he was able to get over his crish with uke.