From experience I would say that it is inspiration that allows for the creation of poetry, and what more than inspiration is romance. Check out inspiration’s definition below…
Definition:
arousal of the mind to special unusual activity or creativity >end<
So, this tells me that once inspired, a poet, or any other artist for that matter, can then start to create.
Furthermore, when I fell into unrequited love it was all I could do to stay sane!
Catullus:
A mighty pain to love it is,
And ‘tis a pain that pain to miss;
But of all pains, the greatest pain
It is to love, but love in vain…
Me:
I am this thing that thinks these thoughts,
those thoughts there,
that thee,
they thought.