Answer:
What Elaine did when she discovered Sir Lancelot had been wounded in the joust was that She rode to him and nursed him back to health.
Step-by-step explanation:
Having been in loved with Guinevere, Sir Lancelot went to the tournament to win the diamond for her. Then he got injured in battle and didn't take the price as he runs away to hide and die alone. King Arthur sends Gawain looks for Lancelot and when he sees Elain with his shield gives her the diamond for him, Later, Elaine finds hin and takes care of his wounds until he fully recovers because she is deeply in love with him.