Charlie was just relieved that someone was at least willing to listen to him talk about dragons. Yes, his family had had to put up with it longer, but it still chafed that beyond polite enquiries as to how he was doing, they very rarely asked about the beasts in his care.
"Brilliant," he grinned at Oliver, picking up his pint and taking a generous gulp. "Think you might be hers, for that matter. If I didn't feed her, reckon I'd slip down the ratings." Probably because Oliver coming over meant exciting food, and probably marshmallows. When Charlie was by himself there was a lot less cooking and a lot more beans on toast.