Something along the lines of "Oh, good job. I'm a grandmaster," would've been nice. Instead she retorts him, saying "And I'm a grandmaster" as response to his "I'm a master." A retort is not friendly conversation. There's nothing friendly in her approach. Everything she says is questioning his right to be there. You can call it ribbing or trash-talk if you like, but the one thing you can't call it (though you seem to be determined to do so) is neutral or friendly.

You really don't see this. Hmm.