Barbara quoted Tom Lehrer:

    I love her and she loves me
    And happy are the both of we

And leeneia wrote,

    Whether he's spoofing or not, Barbara, you're right that that is an awful rhyme.

But you know the very next couplet in that song is

   I love her and she loves I
   And will for all eternity

With "eternity" pronounced to rhyme with "I".

Of course, Lehrer has a lot of excruciating rhymes:

    When the air becomes uranious/We will all go simultaneous

    The druggist on the corner, he/Was never mean or ornery

He rhymes "funeral" with a piece of "sooner or later".

    Everybody say his own/Kyrie Eleison

    These are all the ones of which the news has come to Harvard
    There may be many others but they haven't been discovered

    Plagiarize!/Let no one else's work evade your eyes!

    While we're attacking frontally/Watch Brinkley and Huntley/Describing contrapuntally

And so on. Well, you could call them all awful, but since the songs are supposed to be comical, I'd rather call them awful good.