
Guys, Oscar is not all powerful. He cannot force Ines to be his mistress. If he could’ve compelled Ines to marry him, Ines wouldn’t be married to Carcel but him instead. He can plot all he wants but he cannot force Ines.
First, Ines will not allow herself to be forced by Oscar.
Second, Carcel will not allow his wife to fall into Oscar’s hands
Third, Carcel’s father, who is Oscar’s biggest political supporter, would not allow it. Oscar might think he would but he would not.
Fourth, Ines’s father would never allow it.

The think it's more about undertone. If he succeed in killing Carcel, he would then always be near Ines in every possible occasion, then he would try to summon her to the palace for whatever reason and lastly he would spread the rumors about her being his mistress while pretending he's merely jesting to the point everyone believes that she is.
Of course if that scenario happened like you said Ines and her family would not allow it but Oscar is powerful enough for it to be a possibility

I just love that Cárcel continues to open the path for Ines to regain all the things she lost ever since she gave them up for the crown prince in the timeline she married him and became crown princess as shown in ep62, page 18.
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-200994/pg-18/
First, she’s surrounded by sincere love and care in Calztela. That’s something she admits she’s never experienced before in any previous timeline.
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/nml_chapter-42/pg-6/
Second, she began to do her favorite hobbies again like horseback riding and hunting during the hunting trip. But before that, she was finally able to remember her former self and how she used to be before the crown prince destroyed her life.
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-204918/pg-16/
Third, she’s bonding with her MIL who’s very kind to her and in some ways acts like a mother to her.
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-222148/pg-32/
Fourth, because of Carcel’s influence on her, she invited her brother to hunt in Calztela.
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-232122/pg-37/
Fifth, Carcel asked her brother to accompany her to the Formente match in his stead which created a situation where for the first time both brother and sister will have to spend more time together. https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-244386/pg-46/

Inés received two love letters. One that Cárcel wrote in Calztela and brought with him to Mendoza and the one he wrote in the morning in their bedroom in Mendoza. The latter is the one featured in ch 89. The other letter written in Calztela basically talks about how much he misses her and how he doesn’t remember how he lived in that damn port city without her. He talks about coming home and hoping to see her, going up to the second floor and library and foolishly hoping she’s there. He says he feels like he’s trapped in a boring dream without her and it feels like he’ll only wake up when she returns.
Inés mentions she couldn’t show Juana all of the letter because of the lewd things he wrote. In the Calztela letter he talks a lot about inhaling her scent. lol. Inés always admonishes him not to write lewd things in his letters because their future children might read them one day. Her expectation is always that their letters will be preserved for their posterity. lol

This is the term of endearment used for this couple in this story. It was in the prologue chapter signifying it’s not a one-off endearment. Gotta smile how Ines is blushing profusely over the term.
https://www.tappytoon.com/en/chapters/326067343?

Glad the artist didn’t forget Carcel’s bullet graze from ep76. I can see the bruise/scar on the left side of Carcel’s body in ep87. Will Ines notice it? Hmmm. The plot thickens.
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-223489/pg-1/

Ines doesn’t even realize she’s the one who influenced Carcel to be a clean freak. It was only featured in ep4 of the manhwa but Carcel took that lesson to heart ever since he was a kid and he’s obsessed with being clean. In the novel, even after sex, Ines is usually annoyed that he looks clean and put together while she looks like a mess. It’s mentioned a few times throughout the story to emphasize this is habitually a part of his character so he won’t sleep with Ines unless he’s clean. lol
Anyway, here in ch4 is where it all began when she washes his hands when they were kids:
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/uu/br_chapter-101325/pg-1/

For those asking about the novel, I bought the Korean books for Broken Ring from Ridibooks. This is how I read Korean novels. I rarely read translated versions unless they’re direct translations because I prefer to read what the author actually wrote. So far I have read about 20+ korean novels that all have manhwa versions.

I read all those books with translation apps. Take for example Reminiscent Adonis, The Great Wish, Ugly Duckling, False Confessions, Honey I’m Going on Strike and many others, I read them with translation app and even provided long summaries for some of them on Novelupdates. Many users on Novelupdates use translation apps to provide spoilers on that forum. However, I know not everyone likes to read MTL.

Ines is seated at the same table with both of her nemeses. Next chapter should be interesting. Don’t forget Oscar invited her about 3-4 chapters ago to his Formente game. He asked her to wear a garland which signifies romantic affection. He’s obviously delusional but at least he’s becoming bolder and it would make his schemes more apparent. Ines needs to be more aware of the danger that’s lurking and looming before her.
Ch94 is so good and packed with info.