[garciasn]

Assuming you're commenting in good faith, it has been looked into and it's a well-known behavior of those who are in abusive relationships. You can read more about it here:

https://knowmore.fsu.edu/helping-healing/why-victims-stay

https://ifstudies.org/blog/eight-reasons-women-stay-in-abusi...

https://www.thehotline.org/support-others/why-people-stay-in...

I am sure you can find many others with a simple search. It should help to inform you better for the future.