Final answer:
King Arthur has mixed emotions towards Sir Lancelot after the battle with Mordred, feeling both gratitude for his bravery and betrayal for his affair with Queen Guinevere.
Step-by-step explanation:
After the battle with Mordred, King Arthur feels mixed emotions towards Sir Lancelot. On one hand, he is grateful for Lancelot's bravery and fighting skills that helped in the battle. On the other hand, King Arthur feels betrayed by Lancelot's affair with Queen Guinevere, which ultimately led to the downfall of the Round Table and the death of many knights. So, while Arthur may have some admiration for Lancelot's skills as a knight, there is also a sense of disappointment and hurt.