It's rather strange.
I've been away from home on a study abroad and, even though I miss being able to see my friends and family a lot, I'm not that "homesick" for anything in particular.
Except for my Harry Potter books. I haven't been able to do my summerly tradition of re-reading the books, and therefore cannot feed my addiction. *cries in a corner*
I just have to hold out three more weeks..... Hogwarts, I'm coming.