Oh, I also have two favourite love poems:

Shakespeare's Sonnet 29

When, in disgrace with fortune and men’s eyes,

I all alone beweep my outcast state,

And trouble deaf heaven with my bootless cries,

And look upon myself and curse my fate,

Wishing me like to one more rich in hope,

Featured like him, like him with friends possessed,

Desiring this man’s art and that man’s scope,

With what I most enjoy contented least;

Yet in these thoughts myself almost despising,

Haply I think on thee, and then my state,

(Like to the lark at break of day arising

From sullen earth) sings hymns at heaven’s gate;

For thy sweet love remembered such wealth brings

That then I scorn to change my state with kings.

And Rumi's poem about insomnia

When I am with you, we stay up all night.

When you're not here, I can't go to sleep.

Praise God for those two insomnias!

And the difference between them.

And I really need to get into Tsvetaeva more, because I really love this poem of hers set to a melody.