It ain’t bekauze lovers are so sensitiff that they quarrel so often, it iz bekauze there iz so much phun in making up.

[It ain’t because lovers are so sensitive that they quarrel so often, it is because there is so much fun in making up.]

Josh Billings (1818–1885) American humorist, aphorist [pseud. of Henry Wheeler Shaw]

Everybody’s Friend, Or; Josh Billing’s Encyclopedia and Proverbial Philosophy of Wit and Humor, ch. 131 “Affurisms: Plum Pits (1)” (1874)
    (Source)