What did Harry mean when he said "Well, I take it you're not sorry?" to Griphook?

Question

After the death of Dobby, Harry speaks to Griphook.

Their conversation goes like this:

“You buried the elf,” he said, sounding unexpectedly rancorous. “I watched you from the window of the bedroom next door.”

“Yes,” said Harry. Griphook looked at him out of the corners of his slanting black eyes. “You are an unusual wizard, Harry Potter.”

“In what way?” asked Harry, rubbing his scar absently.

“You dug the grave.” “So?”

Griphook did not answer. Harry rather thought he was being sneered at for acting like a Muggle, but it did not much matter to him whether Griphook approved of Dobby's grave or not. He gathered himself for the attack.

"Griphook, I need to ask - "

"You also rescued a goblin."

"What?"

"You brought me here. Saved me."

"Well, I take it you're not sorry?" said Harry, a little impatiently.

"No, Harry Potter," said Griphook, and with one finger he twisted the thin, black beard upon his chin, "but you are a very odd wizard."

_{Harry Potter and the Deathly Hallows}

What is it that Griphook is not sorry about? Why did Harry say that?

I have two things in mind:

1. Griphook isn't sorry that Dobby, a lesser creature, died!

   Griphook "enjoyed the idea of pain in lesser creatures" and so he wasn't sorry that Dobby died. (source: Harry Potter Wiki)

2. Griphook isn't sorry that he hates wizards! [Even after one just saved his life]

   In the same source above, it says that Griphook has always hated wizardkind. And that he "was eager to harm wizards".

   It would make sense for Harry to be asking, "Well, I take it you're [still] not sorry [for thinking ill of us wizards, for being distrustful of us, for wishing to harm us, even after I saved your life]?"

Answer 1

Or, 3) Harry assumes Griphook isn't sorry that Harry rescued Griphook.

Griphook made what Harry took to be a digression in mentioning that Harry saved Griphook (without the context of thanking him for it), so he said something mildly dismissive and sarcastic to move the conversation past that ("I take it you're not sorry [that I saved you]?")

Griphook then thanks Harry in a very subtle way by calling him a very odd wizard, e.g., one who has shown consideration for Griphook's life that Griphook would not expect from most wizards.

Answer 2

Harry rather thought he was being sneered at for acting like a Muggle

There's your answer right there. Harry is still emotionally vulnerable and is gearing up for a fight because Griphook is using a rancorous (characterized by bitterness or resentment) tone to address him. Harry assumes Griphook is looking down his nose at burying an Elf or rescuing a Goblin as something unfit for a Wizard, and Harry is sick of Griphook's complaints. He goes into sardonicism (characterized by bitter or scornful derision; mocking; cynical; sneering) with the "Well, I take it you're not sorry?" in frustration over the fact that he saved Griphook and Griphook was still complaining.

But in fact, Griphook is becoming cranky because Harry isn't fitting into Griphook's neat little xenophobic worldview, where Goblins are always the victims and Wizards always the perpetrators. Wizards aren't supposed to give a dungbomb about nonhumans, and Harry is actually doing manual labor (something Goblins do a lot of via making magic objects, and Wizards very much do not do) to bury a House Elf. How dare he be nice and cause Griphook internal turmoil when Griphook is having to deal with so much external turmoil!