He wants to say "no thanks to you" but actually she did save both of their skins a couple of times there, regardless of the fact that she's the reason they risked their skin in the first place.

...okay, that's being unfair to her. She didn't ask him to come with. She might've even been subtly telling him he shouldn't have come with, so she wouldn't have to share the spoils.

But, well, what else could he do? The bounty was rank 2, they're both rank 1 and yet Astrid said she was coming anyway, was he meant to just let her try this alone? She'd definitely have died without him here. 

"You've got a resurrection point, at least?"

"Dude, obviously, give me some credit."

"I dunno," he says, closing his eyes for a minute. "The way you were saying you knew these caves like the back of your hand, I wouldn't have put it past you to be persevering on bravado."

"Dude," she repeats. "I'm not that dumb, okay?"

His eyes fly open. "You're not dumb at all."

Wait, is she... crying?

Hard to tell, they're both underwater and her eyes are shut. "Well I feel like a right idiot and it's taking everything I've got to make myself, fuck, make myself say you were right, okay? Don't make me say it again."

...he supposes that resurrection point or not getting this close to dying is terrifying. The fact that the blood from their wounds is just kind of slowly seeping into the water in front of their eyes isn't helping, a reminder that they are kind of fucked and don't really have an amazing plan for how to leave. 

"Should've gotten a healer, or heck a party at all."

"It wasn't even the gods damned bounty."

"Gonna kill us just as dead if we can't figure out a way around it."

"Not gonna lie, kinda hoping you'll come up with some genius move out of your ass." She tries to reposition herself and winces as that jostles something it shouldn't have.

"I don't have any idea about how to deal with a lightning element whatever-that-was underwater! That's meant to be the opposite of the problem we're having!"

"No earth shield hiding in a pocket somewhere?"

"...no."

"We could wait it out."

"That's what I'm leaning towards but I don't actually know how bad our wounds are and the adrenaline crash is making me realise I'm in a lot of pain actually which suggests I'm in worse shape than I thought I was so we might die anyway."

"God it's so embarrassing, though, can you imagine in ten years everyone's telling stories about the first time they died and it's your turn and you're like 'I went after a rank 2 bounty at rank 1 and then something completely unrelated showed up and trapped me in a cave and I bled out'."

"Better than your first death being tripping and falling and hitting your head."

"Dying of an accident is a lot more dignified than dying of stupidity, even undignified accidents like that."

"Granted. ...do you know for sure that it's unrelated to the bounty?"

"...I mean, it was, uh, what was it, cull some marses?"

"No, it was something about dealing with the anomalous increase in their population."

"...you think that whatever-it-was is the reason for the increase? Why?"

"If it's a natural predator of a natural predator it could be messing with some species that'd usually keep the marse population in check."

"A single creature, like, all on its own?"

A sudden wave of nausea hits him hard enough he needs to squeeze his eyes shut and breathe through his mouth to not immediately vomit. He has no idea what it would be like to throw up underwater like this but he's sure he wouldn't like it.