I never had crush but is crush all about appearance? MC had taerin in his life, guy close ...

I never had crush but is crush all about appearance? MC had taerin in his life, guy close in age, great personality, kind, caring, non-judgemental but he fell for seme, later he had another great guy interested in him, guy knew his secret but didn't say anything, he cared about MC, close in age again but MC still didn't think about anything other than seme, I felt bad for MC but he also frustrated me, he was obsessed with seme and obsession is mental illness, I wish he had help he needed not the dick he wished for