@Atethehalloweenchocs yes, in psychology that's called Fundamental Attribution Error. Applied to sexual assault cases, it's when you insist a victim had some control over becoming a victim, bc you simply can't accept that you might fall prey to the same fate without having any ability to stop it at all.
However, I really don't think asking whether she felt signs/symptoms – or acknowledging that she did, and those were perhaps brushed under the rug because who would suspect their husband was a monster basically – qualifies as either FAE or victim blaming. People just want to know, out of sympathy, paranoia or curiosity. Nobody is blaming her. The fact that she had symptoms makes her even more of a victim imo, not less. You've mentioned yourself that she did feel physical symptoms.
I did see posts saying "I don't believe she didn't know" but those posts are possibly a different breed. I think it's a bit emotive of PP to conflate those with any posts simply asking about physical signs.
Plus, in relation to the general population, there probably aren't many husbands like him, but based on the news / online communities, in terms of absolute numbers there are a fairly large number of husbands like him. It's a thing. In my country, a few perfectly middle class men were caught engaged in unconscious wife swapping too. So it might even be a good thing to flag that there were symptoms, only ignored, for potential victims' awareness.