Dinah gave Zatanna a proud smile. While she was good at solving things with her fists, she also strongly believed that a lot of problems could be solved without violence. She always tried the nonviolent approach if it was a possibility.
So hearing about what Zee had done did make her proud of her friend.
"Sounds like you proved your point pretty well then. That should help the talk that he's going to have with the leader of the League too."