...it is foreign to a man's nature to go on loving a person when he is told that he must and shall be that person's lover. There would be a much likelier chance of his doing it if he were told not to love. If the marriage ceremony consisted in an oath and signed contract between the parties to cease loving from that day forward, in consideration of personal possession being given, and to avoid each other's society as much as possible in public, there would be more loving couples than there are now. Fancy the secret meetings between the perjuring husband and wife, the denials of having seen each other, the clambering in at bedroom windows, and the hiding in closets! There'd be little cooling then.
Then again, you cannot stop the flood of desire as it moves through the world, inappropriate though it may sometimes be. It is the prerogative of all humans to make ludicrous choices, to fall in love with the most unlikely of partners, and to set themselves up for the most predicatable of calamities.