thewayneiac: She's trying to sound casual here, but she's plainly concerned.
Keisuke-kun: Misato seems to be talking as if her dad is alive. I actually find this common with people dealing with dead relatives. They usually don't bring up the subject of their death unless they have to.
Sharp-kun: From personal experience, that is common. It's a subject I try to avoid as it often makes the other person uncomfortable for bringing it up. Perhaps Misato was trying to avoid Shinji feeling bad, when he's already going to meet his dearest father?