This is the best and full english translation for the song:
My Dear Love / Koibito-yo:
When autumn leaves fall at dusk, they foretell the cold that will come soon.
On the bench rotten by the rain, no one sits to sing and whisper love.
My love, I want you to be by my side 'cause I am freezing cold now.
I want you to say with a laughter that your farewell is just only a joke.
There's a passing- by man jogging on the gravel road.
He caused me to stand still as if he wants me to forget.
Oh my love, adieu!
The seasons might keep on changing
But there was a time when we were like the shinning stars
And when the glow of the evening fades, dreams disappeared, hearts broken.
My love, I want you to be by my side 'cause I am freezing cold now.
I want you to say with a laughter that your farewell is just only a joke.
Lyrics:
Karehachiru yuugurewa kuruhi no samusa wo monogatari.
Ame nikowareta benchi niwa ai wo sasayaku uta mo nai
Koitbitoyo, sobaniite
Kogoeru watashi no sobaniiteyo
So *e hitokoto
Kono wakarebanashiga
Jodandayoto
Waratte hoshii
Jarimichi wo kake ashide marason hitoga ikisugiru
Marude bokyaku nozomuyoni tomaru watashi wo sasotteiru
Koibitoyo, sayonara
Kisetsuwa megutte kurukedo
Anohi no futari yoino nagareboshi
Hikatte wa kieru mujo no yume yo
Koitbitoyo, sobaniite
Kogoeru watashi no sobaniiteyo
So *e hitokoto
Kono wakarebanashiga
Jodandayoto
Waratte hoshii