@ash003 Yeah, but it doesn't excuse the actions or lack there of it just explains it. I made the comment more so to the people blaming her husband for everything like she was some child. I got bit heated by that patronizing attitude. But I don't think this manga is even trying to justify her...
Her treatment of her son is completely her fault, she was a horrible mother and now wants to try to redeem herself. How her husband treated her was and probably still is unfair, but the child had nothing to do with it. And we don't even know yet whether the son and father relationship was...