[His eyes widen.] N-neighbours? Oh, like me and Rin, ha ha...

[Like being neighbours with Rin went so well back home. What is his life.]

Well... Even if that doesn't happen, you can have a key to my place just like before, so you can come over whenever you want. [And complain about the place being too messy, probably, but at least she won't feel like he's actively shutting her out.]