Seems like this was supposed to be a collection of oneshots, possibly all on the theme of cheating? Hasn't updated in years besides the first chapter tho.
SPOILER WARNINGS
Overall it's nice that MC understood that her own laziness and fear are what caused her to do what she did. It's good that in the end with the power of communicating her needs she was able to re-discover the love that was always present. And the niece's "shit can't be put back in your asshole, it can only be wiped" is a cool punchline but.... it doesn't change the fact that she did cheat on her husband. It still makes me feel uneasy that she will try to keep it a secret forever now that she's satisfied with her insecurities. I know I am biased as a man who will relate more with the husband than MC and I don't know what the right choice would have been, but I'd have liked to see more of this