The previous two chapters weren't so bad, but in this one it sounds like Harry has had a complete personality transplant. Not the least of which was being grateful to Lucius Malfoy instead of suspicious?
You also seem to be contradicting yourself about the Weasleys (or at least Neville's opinion is uncontested by Harry and later contradicted by the 'mysterious voice'.
"Because, they want you to depend on them and not know anything about Society that they don't tell you."
"The Weasley Clan has always been, helpful, to our family."