Haha! The Grangers are always good for comic relief. I can only imagine what that wedding must have looked like. This story was really charming (well, except for psycho!Ginny!).
I love dad!Harry, the fact that he's in a secret relationship with Severus, and that Teddy calls them Da and Se! OMG. That kills me. There was one tiny moment that really got me, and I'm not sure why exactly -- perhaps because it illustrated the intimacy of the family unit Harry had created for Teddy (by this point I had figured out "Se" referred to Severus, and that no one else knew about he and Harry), or perhaps because I'm a sucker for tender, endearing little moments that speak so very loud despite their brief appearance.
"Se, wan’ Se," Teddy said his bottom lip wavering.
"I know love, soon ok," Harry handed over the now crying child to Arthur and followed Ron into the floo.
That just makes me want to squish the three of them together so tight. ♥