Seme genuinely loves uke. They start out as friends but the seme has fallen in love first before the uke even realized that they have met before. At first the uke refused his advances, but it was all a tsundere act, because the moment the seme pulled away the uke got lonely and lowkey upset. Of course their feelings turn out to be mutual when the uke's feelings catch up with him, they even have sex at the end where the uke confesses his love.