Originally Posted by American Maid
Yes, that's a good point.
Along the same lines: earlier in the film (going from memory, so this might be a little inacurate), Thor says something to the effect that Loki was believed to be dead. Loki says, "Did you mourn me, brother?" Thor replies, "We all did." A blogger observed, and I agree, that this is a bit of a dodge on Thor's part, though maybe he meant to convey a broader base of affection toward Loki. Thor doesn't answer Loki's question. With Loki in the frame of mind that Godzilla2000 describes, he would take that to be a "no".
BTW, Rene Russo has commented that Loki needs his mom, so she hoped they'll show that in the next film. So that would fit in with this element too.
It was no "dodge" ..... Thor was conveying the entire family's feelings and that Loki's importance was more than just to himself.
I'm sure in some part of Loki's mind it irritates him because after all, they are not his true parentage.