The avenger's assassin soulmate

After years of torture as a baby, her parents find her again but she is different she suffers from split personalities and multiple personalities.
Her parents later died in a car accident she missed her mum her dad on the other than she codonted care less about he was abusive and mean she was thankful he was dead.
She lives in a loft above her warehouse with her snake and husky. Oh, and she is and an assassin.
She has 15 soulmates she can feel the presents of the marks going down her back but she can't see the names in till she meets them.