"That makes Blaine blush and grin and glance down in such an unabashedly pleased way..."
There you go again! That was such a vivid image that I'm almost sure (but not quite) we've in fact seen Blaine do that exact same thing in canon? You know so clearly how they would react! Aw, they're so sweet together.

And oh, the déjà vu moment when Finn asks Kurt to decorate that space! Let me tell you, were I in his shoes, it wouldn't have been a flutter, it would've been a wave of mixed emotions.

So great, thank you for sharing this!