I feel like that’s true, but they’re not equivalent. Ines is dealing with some supernatural shit that she has zero proof of. She’s struggling to cope with it. Hiding the fact you almost died/got severely injured from your spouse is kind of a big deal no matter what. 
Even in a completely healthy relationship with zero trauma, deceiving/lying about birth control is a bombshell. It’s even worse here because she spoke to him about wanting kids and being happy to have them with him. That’s a hell of a slap in the face whether you have trauma or not                                            
                                                If Ines thinks of this situation from only her point of view, then she will NEVER make any progress. How long do readers expect her to stand still and nurse her past trauma? A year, five years, twenty years, a hundred years? Is Ines never expected to learn anything from this situation? Do readers actually want her to grow or not? 
Again, this perfectly highlights the double standards with readers. When Ines is in the wrong, Carcel gets blamed. For example, like when she brought home the look-a-like woman. And if Carcel wasn’t blamed for it, then the excuse was Ines has trauma. When Carcel is wrong, Carcel gets blamed and rightly so. But how in the world is Carcel always blamed for everything and is afforded zero understanding by some readers and readers always make excuses for Ines is every single situation? It’s always her trauma as if that’s the only thing that defines her. 
Thankfully, the author doesn’t engage in this kind of thinking. Ines will grow and she will learn and she will overcome. She and Carcel need to face this situation by hearing both sides and work to resolve their argument. I’m also grateful that the author will not do a half-assed job with the lessons this couple will learn from this situation.                                            
                                                My entire point was that the contraceptive issue would be devastating even if there was zero trauma. Ines does overreact and get triggered because of her trauma, something she needs to address, but this response would have been pretty well justified even if she had zero trauma. 
They don’t live in a modern society, so marriage equals babies. If you’re having sex as a married couple, it’s expected you will eventually get pregnant. In most pretechnological societies, even the crude birth control methods available were reserved for prostitutes and mistresses, women the man wouldn’t want to have a child with. From her memories, it’s clear this is the case in their society. 
Carcel had good intentions because he was afraid for her health and “trapping”” her in their marriage with a baby. The issue is that he didn’t discuss it with her and let her believe they might have a child soon. 
For Ines, becoming able to feel positive about staying with a man permanently and having a child was a huge step in her healing and shows just how much affection and trust she feels for Carcel.
Her reaction just now is the result of a massive scab getting torn open and exposing the original wound. He betrayed a very fragile trust over a significant relationship issue and she could not handle it. 
I also don’t think the story is as clear with how much sexual exploitation and abuse she endured in her first marriage to the prince as flashbacks mostly focus on her deaths or how her tragedies affected other people.
Use of birth control meant that she was nothing more than a sexual object in the marriage. She was suffering and enduring sa for a long time and was looking forward to having a child/despising herself for “failing” to birth a healthy baby.
Sure, she starts throwing stuff around and having a panic attack, but other than that, her reactions are totally reasonable/beyond her control. People divorce over stuff like this, one partner going on or off birth control while the other is completely unaware. It’s just not realistic to expect her to react calmly to this, even if this was her very first life                                            
                                                No one is blaming Ines for her reaction. Did I blame her? No. I simply pointed out how they are BOTH keeping secrets and they both need to learn from this situation. I said absolutely nothing about the way she reacted because this is who Ines is. She’s hot-blooded, easily triggered and thinks poorly of men. She even broke Oscar’s leg or body part before. 
However, you are already jumping to conclusions. You didn’t even wait to see what’s revealed next chapter. That word ‘trauma’ that you guys revere so much…suppose Carcel has trauma too that you don’t know about? Why is he so afraid of Ines dying in childbirth? There are so many issues this couple need to address:
Suppose Ines and Carcel talk about the issue of having sex while denying her a child? 
Suppose Carcel asks her if she’s only having sex with him to get a child? 
Suppose Carcel asks her if only a child is important to her and not him? 
Suppose Carcel asks her why she fainted way back when and almost died since we know he started to take the contraceptive after she almost died?
Do you get the point now? Is Carcel’s secret the only relevant thing here when he started taking contraceptives because Ines refused to allow Raul to tell Carcel anything about her health? That’s the first secret she needs to clarify otherwise how can he fully believe she’s healthy enough to have a child.
The problem with the view that only Ines’s pov matters is why people get divorced. If only one spouse is the one constantly taking responsibility and apologizing, what does that say about the marriage? This was a problem that started with Ines’s secret which then led to Carcel secretly taking the contraceptive to protect her health because he was uncertain of the root cause of her near death experience. So then both need to be honest with each other and clear up these misunderstandings. Kicking the can down the road resolves nothing.                                            
                                                I didn’t realize people just read stories without forming any reactions or opinions as they go. I don’t get why my opinion is somehow invalid because I impatiently formed a thought before future plot events happened. Always weirdos me out when people get all hyper about “incorrect opinions” that will be proven incorrect infuture plot developments. What am I, a prophet? Tf am I supposed to know how things will develop with new context that hasn’t come out yet? That’s why we form opinions as we read and change them as we get new info <3 
Carcel absolutely has trauma in various forms, but that doesn’t excuse him going behind her back like this. Trauma is an explanation, not an excuse. Ines has done many cruel and hurtful things in the name of self preservation and Carcel has been loyal and caring despite it all.
And again, I’m not saying it’s all Carcel’s fault, or that Ines’s secrets aren’t causing problems,                                            
It doesn’t take a prophet to realize these issues exist. Just like Ines can ask if he’s only having sex with her for pleasure, he can ask if she’s only having sex with him to get a child. Their current argument is a culmination of many issues that they never properly addressed. That’s why my original point is that both sides are keeping secrets and now they have to begin to face them. The only new topic I introduced in my previous comment is the possibility that Carcel might have a trauma and that’s why he’s so afraid of Ines dying in childbirth. All other points raised are things that have also been discussed previously by other manhwa readers around the time Carcel sent Raul to buy contraceptives and again around the hunting trip. This argument is long anticipated by many manhwa readers who kept asking when Ines is going to find out. There are readers who see both sides of the issue and rather than taking sides, want them to communicate to resolve the issue.

		
Kim ChaCha does such a clever job with writing the marital issues of this couple. The bottom line is, BOTH are keeping secrets from each other. Ines has already discovered two of Carcel’s secrets (gun shot wound and contraceptives) and Carcel has discovered one of hers. Now Kim ChaCha has promptly pulled this issue to the forefront and does it in a way that forces this couple to understand how painful secrets are.
Carcel will now understand how much his secret hurt Ines and hopefully Ines will now understand how hurt he will feel that she’s been keeping secrets from him. It’s time to deal with secrets.