Unrequited Love Vol. 3
If you want, here's one that I just added and I didn't see any covers - https://lyricstranslate.com/en/natalie-cole-i-wish-you-love-lyrics.html
https://lyricstranslate.com/en/Irina-Dubtsova-IRINA-DUBTSOVA-Vetra-VETRA...
https://lyricstranslate.com/en/Madonna-Take-bow-lyrics.html
https://lyricstranslate.com/en/4minute-volume-lyrics.html
https://lyricstranslate.com/en/Super-Junior-Its-You-lyrics.html
https://lyricstranslate.com/en/george-michael-i-cant-make-you-love-me-ly...
https://lyricstranslate.com/en/enrique-iglesias-wish-i-was-your-lover-ly...
https://lyricstranslate.com/en/enrique-iglesias-why-not-me-lyrics.html
It's up to your own interpretations of the lyrics on weather you want to include this song or not but here are some of the ones i'm using to justify why I think it fits https://lyricstranslate.com/ja/diamond-yukai-kanashii-iro-ya-ne-lyrics.html
It would be useless if I were to cry
it'll will only make it more sorrowful
I'm asking you if you love me
Hold me tight Even if it's that kind of thing
I didn't understand it anymore
However it's no more then a dream and i'm just a man
Not once have I ever hated you
It would be useless if I were to flee
I have bitten my lips
There are many rivers flowing in this city
Washing the fragments of everyone's love and dreams out to sea
Today is the end for us
Hold me tight Your the
One thing that kept me going throughout my youth
I wanna suggest this one https://lyricstranslate.com/es/tamer-hosny-khalina-ekhwat-lyrics.html
In this song, Tamer fall in love with a girl but she only see him "as a friend" (or a sibling). After that, the protagonist questions about his feelings for her and starts hating his own heart (or himself) for loving someone that doesn't feel the same.
Do you already have Aaron Neville's Everybody Plays the Fool. It's got a positive message. Good old song.