it was his money and you gave him a gift of 260k after he had bought the house so he does not have to give you a penny but he was nice and gave you 200k which is more than you deserve for how inconsiderate and ungrateful you are.
yeah block is really in the wrong here, you paid for that house and she gave you 260k as a thank you present, that means she gave you it, it was not a loan so it became is money. And he gave her 200k back when he did not need to.