A mixed Love (Older Eri x Goku Black crossover ship)

I know some of you people will come at me for this saying thay Eri is only a child in the show. But listen to my AU before you judge to fast okay. And if you still don't like it then go to another book of a ship that is normal.
In this book Goku becomes Goku Black because his wife Chi-chi and his two sons where killed by Vegeta which caused Goku to snap. After killing Vegeta Goku loved alone for the longest time. Until one day a portal opens and he gets sucked into it causing him to go to Eri's dimension.
Now some dimensions have the same timeline. But Eri's and Goku's don't so when Goku meets Eri she's 19 years old. Eri was the first one to meet Goku Black and showed him around.
Goku loved being around Eri. It made him feel like he was around his late wife. Soon he developed feelings for her and she fell for him too. But what will happen when someone takes Eri from him and wants to do her harm again. Will Goku be able to contain himself? Or will he kill anyone who gets in his way in order to protect the one girl he loved after the lost of his first wife?