(but you're killing said she
but it's life said he
but your wife said she
now said he)
ow said she
(tiptop said he
don't stop said she
oh no said he)
go slow said she
(cccome?said he
ummm said she)
you're divine!said he
(you are Mine said she)
“Mine” has the only capital letter in this entire poem and by putting this line in parenthesis, it creates a sense of female empowerment.  Usually, sex is depicted, viewed, and shown as a symbol of male power, but e. e. cummings turns the tables here making the woman in the poem the one in power in the end.
May i feel said he