By some of your standards, any rebuttal to a spouse or partner physically and psychologically abusing you, also constitutes abuse?
There is NO EVIDENCE WHATSOEVER that he abused her in ANY, WAY, SHAPE OR FORM.
He may have written some cuntish messages to his friends in reference to her, but they PROVE ABSOLUTELY NO ABUSE.
What should his correct response to her violence have been? To stay and be hit a few more times, to stay and remain entirely HERS, to stay and do as he's told, to stay to placate her? By stay, I mean, stay in the same room, house, etc., not stay in the marriage.
He never abused her. There is no evidence whatsoever that he did. She has never had bruises, never sought or needed medical treatment and despite her multiple recordings of him, there is absolutely nothing in there apart from mildly phrased defensive responses to her.
You are basically saying, that if your partner abuses you (male or female) and you respond in an irritated or unkind manner, that you too, are an abuser.
That is not the case.
AS for the lady who said that women can not induce terror in the same way that a man can - I assure you, from horrible experience, that they fucking can.