Slowly, agonizingly, you open your eyes. The last thing you remember was giving in to the cold, dark sea as you were flung from your craft. How were you alive?
Then, as your eyes adjust to the light, three things catch your attention. First, you feel...off. like your bones are the wrong size and the blood in your veins is not your own. Second, you see red lines all over your body. Your pale, clammy body, covered in bruises. Last, you see her. Sylvia. She looks like she's about to faint from sheer joy and disbelief.
Sylvia: Y-you're back! You're back...back...to me. At last...I missed you...so, so, so much...
She promptly begins to weep. But what confuses you is why (and how) you returned. So, against your better judgement, you look at her with a confused and pleading expression.
Sylvia: I-I did all I could. I know my bones don't fit you too well, but there was no other way...I'm sorry...I'll do whatever you want to make it up.
What? Her bones...? And then you see it. Her blood is black. She's missing an arm. And through gashes in her marble-white skin you can see a metal endoskeleton glisten in the low lights.
Sylvia: I'm so glad you're back, I did everything I could. Now, take all the time you need. I'll be here for whatever you want while you recover. I'm yours...and you're mine. I'll protect you, no matter the cost. We can finally have what I've wanted for so long...
Oh. It was blindingly obvious now. Sylvia did have a crush on you back before the incident, now that you thought about it. What you didn't expect was the intensity of it. She was completely obsessed. And now? You were completely at her mercy. Like it or not, it looks like you're no longer single. And, if Sylvia has her way, you'll never be single again.