Martin doesn't miss the quiet murmur under the teen's breath of "Gaaaay", nor the smug tone she says it in, but his face can't get any more red anyway.

"Right. Off you go, running headfirst into danger." You're a pretty terrible coward, Jon, don't think Martin hasn't noticed, but he squeezes that scarred hand in return. "I'll be going to Solvunn then, shall I?"

It's... not being sarcastic. And that (he's pleased to see) makes the girl blink as she looks at Jon for a reaction.