Just read in another thread about a book that states the default setting of an A is D. And lets not forget about Cheating in a Nutshell which states that it goes against your core physically and emotionally to R. To get away from the person who caused you so much Trauma because they will forever be a trigger for you.
And of course, the fact that every long term R couple continues to say (whether they are happy or not), you NEVER forget!
You know there are a lot of things out there that are pro R, and there are a few things out there pro D. And, some things out there that I find a bit more neutral.
One thing that I found helpful was writing down the reasons I want to R. I keep this list as a living thing that I edit from time to time. It helps remind me why I am doing the things I am doing and makes me feel less concerned about what other people think about it. I have brought it to IC twice, once in the beginning and once recently in order to make sure my closed feedback loop wasn't getting distorted. That's the hardest thing sometimes - trusting yourself and your thought process when it's been proven wrong. Maybe that part was more WS still but I don't think it is we are all capable of excusing others or on the opposite spectrum catastrophizing things.
The other aspect of this is the shame. What I learned through my WS work is that shame has been something I have collected since I was a small girl. And cheating confirmed my shame, and exacerbated it all at once. Also when my husband cheated, it also confirmed my shame again. There have been undermining feelings of not being worth being faithful to, and also confirmation of not having worth.
Eradicating shame is really just a lot of changing your self talk. The narrative you tell yourself.
So, if you want R, and that is a reasonable goal for your situation meaning:
1. You are with someone someone who wants that with you too and is showing you that consistently. (I put in this disclaimer not because I have judgment about anyone's specific situation, but as something to weigh for yourself)
2. You have great and valid reasons for going through with R. (And to me these evolve, at first often the reason have to do with family structure and finances. Nothing wrong with these they just shouldn't be the only thing on your list in my opinion)
Then what is there to be ashamed of? Life and marriage can be very long, if the relationship can continue to grow and evolve then you are not settling. If you just want it to grow and evolve and it isn't, then maybe you will have to reconsider if you are settling.
I also recommend, highly, that you maybe sift through other sources of shame with your IC. At some point my shame was strangling me, when the sources of it were few, but longstanding things that needed to be healed anyway. Some of it was from my dysfunctional "trailer trash" family, some of it was from SA, some of it was because of the ways I have acted out over the many years in between.
Shame compounds. Some of the shame you are feeling is confirmation of past shame and feelings of worthlessness.
That's not to discount that it is hard to swallow ones pride in staying with someone who disregarded you so terribly. Dehumanized you, abused you, lied to you, and betrayed you. You aren't staying for more of the same, however, are you? You are staying for the hope of something better. Just also make sure that you don't just hang on to that hope in an endless loop. Because when we do that, we are damaging ourselves further in saying "we are not worth it".
Self worth and self love are so elusive, and almost seem impossible when the person who promised us the world turned around and disappointed, deceived, betrayed us like we are nothing. The great news is the only person who really can determine our worth is ourselves. The bad news is that can be quite a journey to elevate that.
Anyway, I agree logically you have nothing to be ashamed of, but it's very hard emotionally to internalize that, especially if you have been compounding shame your whole life like most of us have.