Cheating Death(Yandere Jason Todd)

my previous story Perfect Blue I decided to delete it after seeing the Batman the death of the family coming out on the 14th so I thought of changing it completely
The main character's name is Amethyst Hunter, Jason's childhood friend not long after his parents died. Amethyst originally comes from a upper middle class family with her father starting his own business around the time Amethyst was around twelve years old and with her father traveling to Gotham a lot she tagged along with him, whenever she came to Gotham she would hang out with Jason. Jason thought Amethyst was the most beautiful girl he'd ever seen and fell deep in love with her the more they spent time together, when Jason was adopted by Bruce Wayne her father and him because partners .Before her father started making a fortune Amethyst started to develop her love of anime thanks to her Asian friends before she transferred to a rich privet school. What Amethyst wasn't aware of was what Jason already knew about what was going on in her life, without her realizing it he had been following her and ever going as far was putting a tracking device in her phone. Amethyst had called Jason when she overheard her stepmother negotiating with an arranged marriage for Amethyst with someone she didn't know to merge with her father's company and she didn't want to go through with it and begged Jason for help in which he promised her, after rescuing her Amethyst started living in the Wayne manor and Bruce had canceled his partnership with Amethyst's father shorty after she started living in gotham. When she started dating Jason was very jealous at that, he carefully got rid of her boyfriends, after surviving the explosion Jason has confessed his feeling to Amethyst and she confessed as well. Not long after Jason spoke his feeling he had left the Wayne manor, Amethyst was the only one who he told about his intentions and why he was leaving and he promised that he would come back for her.