Oh, certainly he'd believe/suspect it. And given what he knew of Petunia's history (the letter and desire to go to Hogwarts), I don't think he'd necessarily imagine that Petunia might treat Harry badly *because of his magic*. But yeah, seeing that expression directed at him by Harry combined with his suspicions about Petunia bad-mouthing him he'd be primed to think that Harry came in hating him - ironically.
no subject
Date: 2012-08-19 10:39 pm (UTC)