You and Sydney decide to head right, and go under a dripping ink puddle. The ink lands on you both. You end up covered in it, while Sydney shakes it off, Sydney then looks behind her and sees you covered in ink...
You begin to transform as Your hair becomes silky inkling tentacles, breasts form on your chests, a line forms between your eyes, your hips widen, and your memory fades.
Sydney looking at you on horror, then decides what she'll do.
The ink uncovers your body and you ask who you formerly knew was Sydney, who you are. Sydney replies with, I'm you're girlfriend silly, we were just out on a walk, let's get you back home okay? You agree.
For the next several years, Sydney tries to get you to fully remember who you are, until eventually... you remember and hug her tightly.
You ask Sydney, "what about everyone else, what will we do?" She replies with "we'll live here for the rest of our days together, sadly there are no more survivors.
You and Sydney share a kiss and spend the rest of your days together in the shelter.