1. Is is a definite guideline not to continue counselling in the event of abuse?
I don't know what are the guidelines of your organisation, but a friend of mine works for Relate, and he has told me that they screen for dv/a, & if there is any apparent: a) the couple can't do couples' counselling & b) they pass them on to people who are trained to deal with dv/a. Relate counsellors have no training for dv/a.
I should say that he is family friend, recently retired, and he is ambivalent about his training as it only took a year, from which you may infer that it is not very thorough.
2. Talking about her own relationship, her own husband is "very violent" but not "abusive". Much other personal information.
I do know that any trained psychotherapist/psychologist should never talk about themselves in a therapy setting.
Quite apart from the question of what 'very violent' but not 'abusive'
means. If that is a current relationship it sounds as if she should not be doing this at all. She seems to have a warped idea of what abusive means.
3. Giving an assessment that abuse is on both sides - apparently this is very rare and not how abuse dynamics work but I'd like to know that this is recognised fact? Is it in LUndy bancroft?
I've no idea, I'm no expert & someone on here with personal experience of dv might know. All I can say is that a book I am currently reading called 'The Typology of Domestic Violence' by Michael Johnson, which I have been told is well-regarded, differentiates between 'intimate terrorism' which is one-sided abuse, and 'situational violence' which is on both sides.
Johnson argues that: "domestic violence is not a unitary phenomenon". Instead, he delineates three major forms of partner violence: 'intimate terrorism', 'violent resistance', and 'situational couple violence'.
He bases the conceptual distinctions according to the forms of violence, in an analysis of the role of power and control in the relationship.
'Intimate terrorism' is the abuser-victim relationship dynamic; 'violent resistance' is where the victim of abuse is sometimes physically defiant to the abuser; 'situational violence' is where both partners are abusers.
The book claims that 'situational violence' is the least common form which corroborates your impression (indeed you might try reading the book). I have not read Lundy Bancroft.