Just send him away, Fay,
Don't wait till Friday, Heidi,
Just take your best shot, Dot,
And let the man go.

Just blaze a new trail, Gail,
Let the guy go, Mo,
No need to be blue, Sue,
Just pucker and blow.    (My apologies to Lauren Bacall)

Other possibilities:

No need to be mean, Queen,
(Just make a new scene, Jean)
Just follow your bliss, Miss,
Hop on the ferry, Mary,
Tell him you're gone, Yvonne


or how about:
Just tell him you're queer, dear.
Scratch a new itch, bitch,
Just show 'im the do', ho,
And kiss 'im goodbye.

(No?) ;-D