My F is ostensibly borderline with N traits and my NM well, I would say certainly borderline with heavy N traits or borderline and N. Either way, it means absolute horror for any children born of such a couple.
Yes, F was verbally abusive, violent and aggressive. And, since he was louder, bigger and punched holes in walls, it seemed from a child's perspective that he was the "bad guy" in the relationship. Now that I know about NM's manipulative and surreptitious abuse, I know she is more evil than F. But, still, F was/is verbally and emotionally abusive and deserves nothing good to be said of him. He was a complete fraud--wonderful to persons outside the family, but a monster toward his children. And, N was worse. So, if he is/was abusive toward her, all I can say is that she certainly deserves it. And, vice versa.