"A valid point, but I still maintain it's a well deserved large head," he said, ordering a round of Butterbeers for them as he smiled at her fondly. He was used to jokes about his ego and, while they could get old on occasion, he embraced them rather than fight him.
Because yes, he had an ego and yes, jokes were to be expected.
"I expect it would be. No one's said anything to you, right?" It had been easier to shield her from bullies or anyone that might have anything to say to her when he had been Hogwarts. But from outside of the castle, he couldn't do much unless she told him to.