This one is a double drabble. I tried, but it just refused to be a regular old drabble, the first draft was 222 words and it took quite some time to get it down at all.
Unfavourable
Severus looked down at the fourteenth, ruined, version of his experimental was also the fourteenth attempt to turn out a completely unfavourable result.
He vanished the contents of his cauldron with a sharp wave of his hand and slammed his hands down hard on the countertop in a fit of pique.
Damn it! He simply refused to be useless in his work, just because the object of his affections had left, never to return to hi-, Hogwarts.
The sound of the door creaking made him whip around, prepared to deliver a sound tongue-lashing to whomever had dared to invade his privacy, but the sight of that shaggy black head peeking around the heavy door robbed him of words.
Harry came further into the room, leaving the door open. "I couldn't leave without talking to you, Severus." He took a deep, fortifying breath before rushing onwards.
"I love you."
Severus was struck dumb, but Harry continued without even looking up. "I know that you couldn't possibly feel the same, but I just had to tell-" Severus stepped forwards, took the younger man's chin in a firm grip, tilted his face up and pressed a tentative kiss on his lips.
~Fin~
A/N: This update is later than usual because, rather than updating before I go to bed, I am updating after I got up. My sleep schedule is going to be returning to normal now that the craziness of NaNoWriMo is over, so I'll be back to my own bizarre schedule - meaning I will probably be updating sometime between 3am and 5am my time, as that's when I get up in the mornings normally. And that was probably way more than you wanted to know, but now you have an explanation for the schedule change.