I think my dad has Empty Nest Syndrome.

I called him last evening to find out how far he is in Harry Potter. He has the audio cd, so he only listens when he's driving to and from work. After discussing horcruxes we had this conversation:
Dad: So how are you?
Me: I'm fine.
Dad: So everything's okay?
Me: Yeah.
Dad: Walt [my brother] and Keighty [his girlfriend] are here. They're going to get an apartment in Philadelphia.
Me: Oh, uh, okay.
Dad: They'll probably be moving in a few weeks.
Me: Probably.
Dad: And you're in Knoxville. Soon only Carmen [my cat] will be left.
I didn't really know what to say to that, so I said something rather vague.
Dad: You know, you could get a job up here.
Me: Dad, I'm not sure there's actually a library in Carsonville.
Dad: Well, not in Carsonville, but Harrisburg is the state capital, and there's the whole Pennsylvania library system.
Me: I know.
Dad: It's just a suggestion.
Me: Right.
Dad: Something to keep in mind.

I never really know what to say when he gets like that. I don't really want to live at home after grad school unless I have no other options, but dad always sounds so hopeful when he talks about library jobs in PA. And he always tells me to come and visit whenever I get the chance. Not that I'd actually let my parents dictate where I live, but sometimes it's hard saying no. Sigh. I love my parents. I just don't want to live with them.