First thing IS something that would happen. Postpartum depression is bad already, but if you combine it with bereavement, end result is getting grief instead of pleasure at seeing the kid's face.
Second thing... you know that this is NOT how pregnacy works, right? Nor how Victorian society worked. If the dead husband had an affair and an illegitimate son, he would not be raised at the wife's house. It COULD be that you had a slip of tongue keyboard and wanted to say write "he was not his father" (in which case it would make sense). And yes, it would also cause grief.
Uhh no, I said exactly what I meant, that the son is the father's child but not the mother's. You are sadly misinformed if you think that illegitimate children weren't raised as legitimate ones in Victorian society and should take a few more history courses at the college level before spouting bullshit you know nothing about it. It happened
a lot, although it was only covered up to keep everyone's honor openly intact, even if everyone secretly knew the truth,
if the father was someone of higher rank in society. (The mother, on the other hand, probably ended up being treated like shit even in those cases. And an illegitimate child due to the mother's infidelities would almost never be covered up.) Other times it wasn't and everyone involved were treated like shit and stigmatized.
If the charade started before the father died, then it being continued by the mother is commendable, as she's doing it to give the boy a chance at a decent life. She could have told everyone the truth, kicked him out on the streets and let him suffer instead with no one important thinking less of her for it.
That fits with the facts in the chapter.
You're also hanging on desperately to your postpartum depression theory, it doesn't necessarily apply with 1. It
could be both, but I'm not suggesting it is, I'm suggesting the whole problem in case 1 is that he reminds me her of her dead husband alone.
And finally, you didn't want me to respond to your bullshit did you? If you had you'd have done a reply so I knew someone replied to me.