Please read those links!!!
There's plenty of information that tells you that of course it's not always about physical abuse.
Unless you take some time to read and understand the help and support that's available you'll not progress your position.
Domestic violence is any threatening behaviour, violence or abuse between adults who are or have been in a relationship, or between family members. It can affect anybody, regardless of their gender or sexuality.
The violence can be psychological, physical, sexual or emotional. It can include 'honour-based violence', female genital mutilation, and forced marriage.