Keith excited the ally after teaching his attackers a lesson.
And by that, he meant that he left them unable to stand up and tarnished all of their dignity. It had been easy to do as well and it made Keith's self-esteem rise by a lot.
He had never been a person who could be easily bullied by such people but now he was way beyond their reach and he was finally able to prove himself.
"Grandmaster, there you are. Where did you disappear to? I was looking around for you everywhere and I even called you but you did not pick up your phone. I was a little-"
Master Fushi nagged at the grandmaster, starting to speak her mind boldly before she realized whom she was speaking to and her face broke out into a flush of anger.
She also stopped mid-sentence but Keith could very well guess what she wanted to say to him and what she thought about his habits. Her complaining tone had been a little cute but irritating at the same time.