By Gorean law the companionship must be annually renewed with the wines of love by both.
"That is true," I admitted. By Gorean law the companionship, to be binding, must, together, be annually renewed, pledged afresh with the wines of love.

Enslavement dissolves companionship
"And," said Telima, "both of you were once enslaved, and that, in itself, dissolves the companionship. Slaves cannot stand in companionship."
(Captive)

I looked at the board, angrily. It was true that the Companionship, not renewed, had been dissolved in the eyes of Gorean law. It was further true that, had it not been so, the Companionship would have been terminated abruptly when one or the other of the pledged companions fell slave.
(Hunters)

"I was kept in great honor in Ko-ro-ba, " she said, " respected and free, for I had been your companion even after the year of companionship had gone, and it had not been renewed."
At that point, in Gorean law, the companionship had been dissolved. The companionship had not been renewed by the twentieth hour, the Gorean Midnight, of its anniversary.
(Marauders)