There’s nothing wrong with the cat. It won the fight, it knows it and it likes people.
It might be just basking in the glory. It’s still not going anywhere but I brought it some food and water and it took a little, with a look of “It’s about time.” But I’ve never had a cat I’ve never seen before be so responsive and friendly yet just lay there. My cat is practically tearing the front door down trying to get out to the porch where the other one is!