My boyfriend doesn't want to invite me over?

My boyfriend is Japanese. We've been dating for a month and a half. He lives by himself (at least that's what he says), but doesn't want to invite me over. He always says that his apartment is messy and dirty. I'm wondering whether he's hiding something.
Updates
+1 y
He's 29, I'm 23.
My boyfriend doesn't want to invite me over?
Post Opinion