The Beatles - For No One (cover) 

One of my favourite songs ever by my favourite human ever, SIR Paul McCartney.
From Wikipedia:
“"For No One" is a song by the English rock band the Beatles from their 1966 album Revolver. It was written by Paul McCartney, and credited to Lennon-McCartney. A blend of baroque pop and chamber music, the song is about the end of a relationship, and was one of McCartney's most mature and poignant works upon its release. Mostly performed by the composer, the track is distinguished by its French horn solo, performed by Alan Civil and used as counterpoint in the final verse.”
Lyrics:
Your day breaks, your mind aches
You find that all her words of kindness linger on
When she no longer needs you
She wakes up, she makes up
She takes her time and doesn't feel she has to hurry
She no longer needs you
And in her eyes, you see nothing
No sign of love behind the tears
Cried for no one
A love that should have lasted years
You want her, you need her
And yet you don't believe her
When she says her love is dead
You think she needs you
And in her eyes, you see nothing
No sign of love behind the tears
Cried for no one
A love that should have lasted years
You stay home, she goes out
She says that long ago she knew someone
But now he's gone, she doesn't need him
Your day breaks, your mind aches
There will be times when all the things she said will fill your head
You won't forget her
And in her eyes, you see nothing
No sign of love behind the tears
Cried for no one
A love that should have lasted years