kurt.

He can’t help it.  Blaine comes back looking like he ran to the vending machine and Kurt has to smile, even briefly, while trying not to chuckle.  It was sweet.  Maybe a little too sweet for Kurt’s current state.  His eyes water a little and he rubs at his nose, letting the upturn of his lips fade again.
It’s obvious how reluctant he is to ask, eyes shut and question following a sigh.  “Can you stay?  I just- you don’t have to, I’m not exactly good company but I don’t think I want to be alone.”  He explains with a cautious glance back to Blaine’s face as he fiddles with the cracker package.

Seeing Kurt smile–briefly as it was–made Blaine smile right back. If he made him feel a little better by coming back in the room breathless and trying to look like he casually strolled in?  He’d take the small amount of embarrassment that being busted brought.  But then the smile is gone and Blaine’s head moves to the other side–a frown on his mouth, too. 

Not wanting to push him for an answer–Blaine turned to go like he offered to but then stopped immediately soon as Kurt shut his eyes.
He bit his lip to keep from asking Kurt if he was okay when the obvious answer was no.  “Kurt, you’re sick. It’s fine. You don’t have to worry about what kind of company you are.”  His expression melted into a gentle reassuring smile as he sidestepped to the foot of the bed and sat down.  “All you had to do was ask.  Want me to find something to watch?  We could use my laptop?  Might get your mind off things.”