[BL] Due to a rare condition, Vince’s end of the red string of fate is tied around his neck, while his soulmate's, Jack, is tied around his finger, like it’s supposed to be.

Theory says that if they "sleep" with someone that isn’t their soulmate, the string tightens on the other end, letting your soulmate know exactly what you are doing.
When Jack feels his string tightening, he feels heartbroken, and starts to sleep around with everybody as revenge, not knowing Vince was a victim of abuse.

When they finally meet, Vince is already suffocating.

or -
Love and fate's hopes for humanity were way too high and all they got was disappointment

Singularity: The Red String Around Your Neck

His mother comes inside the room along with the doctor and she hugs him as if she hasn't seen him in a lifetime. The doctor examines him and tries to explain what happened. Apparently he's been unconscious for a month now. 


"We'll keep you here in observation for tonight and you'll need to come back for some tests, but everything seems to be alright." The doctor assures him, not able to hide his surprise. 


He didn't expect Vince to wake up this soon, if ever, and most certainly not this healthy. 


Vince smiles at the doctor and his mom hugs him again, unable to hide her emotions as happy tears stream down her cheeks. 


"I'll be back tomorrow morning, so we can go home, okay?" She kisses his head. “I’m leaving now. I love you son.” 


“I love you too, mom.” Vince nods and smiles at her. "Can you… Uh, can you tell Jack to come in?" 


Chapter XX