I don't know about this individual case though I feel for anyone affected by domestic abuse.
I find it interesting that this suddenly becomes an issue at the same time as an attempt to push through a law that means intact men can declare themselves women on their own say so.
The dynamics of abusive men's use of coercive control against their partners is well documented and known by those who have experienced it or worked in the area and observed it - see Lundy Bancroft.
The type of man who would do this is exactly the type of man who would love to be able to declare he is now a woman and claim people should support him and decriminalise him after smashing his partner to death with a hammer.
What is this organisation's view on Self-ID btw?