The ultimate horrors of life and love

Shadow was happy with Sonic in his relationship until Sonic started to act...Strange. being more possessive, obsessive, aggressive, and abusive. Shadow makes an escape attempt and starts living with Knuckles to hide from his now abusive ex-boyfriend, who has now completely lost his mind, like COMPLETELY and Knuckles hired extra bodyguards, Elias Acorn and Gabby the bunuki, to face off against Sonic. Will Shadow be able to regain himself while dealing with his new love interest? And will Elias and Gabby defeat the control obsessed blue hedgehog? Will the surviving gang figure out what's going on in the chaotic city of crisis city? Will Shadow finally be safe from hell?

TW:
Does contain gore, abuse, rape, SA, violence, inappropriate scenes, swearing
(Im just starting out writing fanfics so I may not know how to handle these well with these dark topics but the SA and abuse thing will still be portrayed as horrible stuff.)