If you think the information Hope gave us in the last update is correct and not misleading us on purpose, then the non consensual sex theory seems a tad strange.
Code:
Elektra : "Your mother was as vicious as they came."
Elektra : "Some would even say she was a morally bankrupt person."
Elektra : "Rina was engaged to another of the Serpents, one named Dante."
Elektra : "But he died when she betrayed the Family."
Elektra : "She was exiled. Not just exiled from the DeLuca Family, but from the entire underworld."
I don't even wanna know, what counts as so egregious in that fucked up world, that one gets exiled from the entire underworld, but it at least sounded like it's a very rare occurence and the setup makes it sound like no normal person could ever guess what it was because it's completely off the scale fucked up.
Like even cheating on a Don/Donna or rape probably isn't something that concerns the Pacificatoris and would've rather been handled internally.
However I agree with you that Cordia being so invested in the MC is very odd and with our current level of knowledge even crazy. She is putting her entire family at risk, by not just throwing the MC into a cell and throwing the key away, against the advice of Wilfred. And all we know is that she never met him and that she isn't blood related to him, so it stands to reason that it must be something HUGE, otherwise it wouldn't make any sense.
When Wilfred catches the "Gracie-Gang" after their kidnapping mission, he says to the MC :
"You may get away with a failure from this, due to your position in the Family."
What position ??? He's a Soldato ! Like the hints keep piling up, but it's never enough to tie it all together.
Let's all just agree, that the game and most of all Hope are infuriating and should not be consumed or talked to, unless being completely hammered !!!