I loved you when you were inconstant. What should I have done if you had been faithful? (Je t'aimais inconstant, qu'aurais-je fait fid?le?)
Source: Andromaque, IV. v. 1365
-- Jean Racine, (Dec 20 1639-1699), French dramatist; His plays included the tragedy Andromaque, 1667 and Les Plaideurs, 1668.