I don't think that about him. He's your brother. Of course he wouldn't do something like that! [And since he can't stop his thoughts you can be sure he's thinking this for real.]
Um, so why did dog Kaname come instead of person Kaname? It's not like he wasn't invited or anything even if he wasn't invited. I mean, you can always bring anyone you want.
And I still don't get why you can't see people at home. That's not right.