Paul Simon Said that there are 50 ways to leave your lover.

just say when Ben

Just start to sneeze, Louise
Fake your suicide, Clyde
Write her out of your will, Bill
Quit your job, Slob
Vote the wrong way, Clay
Say she looks fat, Nat

In a Coup D'Ville Bill

Run away quick Nick
Don’t lose your chill Jill
Get your motorbike Mike
Walk down the stair Claire
Grab a jet Brett
Keep your voice low Joe
And you’ll get away Ray.

Kill him during a quarantine and claim insanity?

Slip 'er some arsenic, Rick.
Bathe 'er in sulphuric acid, Chad.

hop on the bike Mike

Fake your own death, Beth

Gouge out her eye, Guy

Hope on the bus Gus

I think the song says "There [b]must[/b] be fifty ways to leave your lover."

They only offered a few suggestions to get you started. There's "slip out the back, Jack"
but at that time you'd've had trouble finding an acceptable rhyme for "walk out the front."

go on the fly Guy

just be gone Ron

Take a jog Bob

Make a new plan stan

slip out the back Jack

Cut off his dick, Nick

go for a meal Neil

Cave in her head Fred 🤷‍♂️