As time passes by
We think of each other
despite all the bad and all the good
We think about each other
It's about Us
It's not about you
It's not about her
It's not about him
It's not about them
It's about Us
It defines Us
It is...
Which female American poet, who was little-known during her lifetime, but had nearly 1800 of her poems published posthumously, rarely titled her poems?