幼馴染で恋人の彼女は、僕を見ていない (Associated Names)

My childhood friend and lover, Kana. She no longer has any interest in me. Even though she is very friendly and cheerful to her other friends in class, but when I talk to her, she only responds me with a single word, ‘Hmm.’ While I feel I’m just being used by Kana as a convenient…