You aren't quite sure how you made it back to Snowdin - it helped that the elevators were working, you supposed. Although that was because Alphys wasn't trying to win your friendship, because she didn't know who you were...and never would. You'd die being nameless to everyone.
Except Sans, anyway. But you're fairly certain that he wants you dead.
Panting, you curl up tighter on the snow, your arms wrapped around your torso and your fists pressing against your heart. The cold atmosphere makes the pain a little better, but in spite of it, you're still sweating heavily and have a boiling fever. Every time you think that the pain has reached its climax, it only gets worse.
Your whimpering goes unnoticed. You've collapsed near a tree that's far into the snowy woods, away from the town. You couldn't bear the thought of people that you've killed numerous times trying to help you, worrying over you, or at all feeling sorry for you. Several times you've considered going back to the Ruins, to ask Toriel to take care of you in your last hours.
But she's lost enough children already. As lonely as you feel, you won't do that to her.
"Howdy!"
You struggle to open your eyes, squinting at the blur of gold and green standing out against the snow.
"Golly, this sure is a big mess you've gotten yourself into!" The flower says happily, tilting its head and staring at you with creepily bright eyes, "Giving away your SOUL...you really are an idiot, aren'tcha? Did you think that you could atone for everything you've done? For every time you've killed them and their friends?"
You start shivering in spite of your fever, wincing and curling into a tighter ball. It feels like you should have collapsed in on yourself already. You wish it wasn't taking so long.
"Aw, you got a tummy-ache, best friend? That's a shame." Flowey giggles, holding a leaf over his mouth, "A shame that you think that that's the worst thing about being soulless."
You roll onto your back, shutting your eyes against the brightness shining down from the Underground's 'sky'. Flowey leans over your head, giving one of his creepy smiles. "The pain doesn't go away, Frisk. But don't worry - soon you'll grow numb to it. You won't be able to feel anything." At your somewhat content expression, he laughs, "Oh, I'm not talking about dying, Frisk! That'd be too kind for a murderer like you, don'tcha think?"
Your eyes widen slightly, pupils shrinking. You aren't going to die? Then...what…?
"Your SOUL is the very culmination of your being, remember? You don't need one to live. Just look at me!" The flower giggles, grin widening, "No, you'll stay alive. Butyou...everything that you are, will fade away."
"N..n-no!" You struggle to sit up, to get his face out of yours, but another bout of pain knocks you back to the ground easily.
"Oh yes, Frisk! Everyday, a little bit more of you will be gone. Your memories, your ability to love and feel loved, even your sentience! You won't even be aware of your own existence, at the end!" Flowey gives a delighted cackle, looming over you, "I always wondered what it would have been like to lose a SOUL completely! See, I'm notentirely gone. My dust was scattered over this flower - some of my essence still remains! But you…" He laughs again, like it's just too funny, "You'll be nothing at all!"
A choked sob escapes you, and you roll onto your side, hiding your eyes behind your hands as if that can shield the truth from you. You'd been prepared to die. You've done it so many times that you don't fear it anymore. But dying in this way...by losing more of yourself every day until you no longer even have a consciousness…
Shivering, you force yourself up to your knees, trying to expose yourself more to the freezing wind of Snowdin. If you freeze to death out here, then..then you won't have to go through all of that. You'll die like you had expected to, and everything will be fine.
"Golly, pal, you look cold! It's not too good an idea to stay out here for so long! Don't worry. I'll get you help!" The flower gives a smirk and a wink, "After all, what are best friends for?" And with that, he disappears underground, and you're left alone.
Half an hour later, you're still sitting up on your knees, arms wrapped around your waist as you tremble in the wind. Where are you, even? You remember walking far, but you don't know how far away you are from home. Why'd you come out here?
"Over here, Papyrus! Do you see them?"
You hear quick footsteps, and then a voice, "HUMAN?! ARE YOU ALRIGHT?!"
Your eyelids have frozen shut, so you can only vaguely look in the direction of the voice. "Pap!" You hold out your arms excitedly towards the skeleton, grinning wide as he quickly picks you up and wraps you in his scarf.
"WHAT ARE YOU DOING OUT HERE?! IT'S NOT VERY GOOD FOR YOU TO BE IN THE COLD FOR SO LONG!"
You must have gotten lost while exploring the woods behind your home. You've never seen it covered in snow before - you're excited to share your first winter with your new family. They'll love Christmas. You just know it.
Even though Papyrus's running is less than smooth, you find yourself relaxing and beginning to nod off. Mom will scold you for going out in the cold so poorly dressed, but she'll probably make you hot cocoa and have you sit near the fireplace. You smile at the thought as you fall asleep.
Finding your family is the best thing that's ever happened to you.