The Green Knight feigned a blow. And a second. And on the third, he barely nicked Sir Gawain’s neck, drawing blood. Outraged, Sir Gawain leapt to his feet, claiming that the wager was fulfilled, when the Green Knight laughed and revealed his true identity: Lord Bertilak! He explains that, because Sir Gawain didn’t honestly exchange all his winnings on the third day, he drew blood on the third blow. Nevertheless, Sir Gawain proved himself a worthy knight by the rest of his actions at the castle.
Relieved to be alive but incredibly shamed by his deception with the girdle, Sir Gawain returned to Camelot, wearing the accursed girdle as a mark of his failure. The other knight’s welcomed him back with open arms, wearing girdles themselves to show their support.
And so, through unwavering chastity and nearly unwavering honesty, Sir Gawain defended his liege’s pride, and his own life.