One of my favorite love poems is by Nikki Giovanni.
The World Is Not A Pleasant Place to Be
the world is not a pleasant place
to be without
someone to hold and be held by
a river would stop
its flow if only
a stream were there
to recieve it
an ocean would never laugh
if clouds weren't there
to kiss her tears
Read the rest of the poem here.
Read more about Nikki Giovanni here.