I think you need to understand the dynamic, what made you tastier prey than a woman who might have just stared blankly back at him as he verbally abused her. She would not give him any sense of power. The abuser needs to see that he has upset you.
Because abusers have low self- worth and have to use their egos to feel any sense of self worth, what an abuser needs to do is to create drama and upset in another person which feeds his ego in a temporary way. ''I caused her pain'' inflates his ego temporarily. So he gets a temporary hit from causing pain, indignation, self-righteous defense.
I think you're making a mistake to call the decision to defend yourself ''strength'' in this context.
Your motivation to defend yourself was to make him believe you or your version of events.
If you'd been strong you wouldn't have needed his approval or his blessing or his validation, in that moment or generally.
Strong does not equal verbally defending yourself. It is a weakness that makes you need to defend yourself.
Strength in this context definitely means ''get me away from this toxic behavior ASAP''
The choice to hang around, living on trial, living in the dock, living the life of an accused on trial is not strength.
It's a dynamic that appeals to the abuser all right.
And hopefully it no longer appeals to you.
OP, a book I read by Anne Dickson had a list of rights. Specifically rights for women but they hold true for people. The book was written with women in mind though.
One of the rights which it helped me to read was this. '' I have the right to make a mistake ''
This helped me enormously in my recovery. Just knowing that I had the right to draw a line between the two halves of my life, before I walked away from abuse and .... after I walked away, it helped me not to spiral downwards berating myself for the choice I'd made when I had less consciousness, less self-worth and instead, to focus on building my self-esteem and my self-efficacy and (to sound really cliche for a moment), getting to know myself and what I wanted out of life and what would make me feel content and like my life was fulfilling.
It does take energy to endure these toxic relationships. But it's a waste of energy. It's a pointless waste of your resource of energy.
So substitute the word strength for energy when you analyse this. That would be my advice to you now.