Samidoh's wife Edday Nderitu was among the women who commented on the post.
Edday said the person to be blamed the most is the man and the woman also thinking they are better than the wife.
"It all starts with a man who doesn't respect his family, then comes a side chick who thinks she’s better than the wife," she wrote.
Edday added that in this case, the children suffer the most.
"Children will suffer because of two selfish people, and that’s why suicide in pre-teens and teens has increased."
Her post comes days after Karen Nyamu used her Insta-stories to share a photo of Samidoh posing next to their son on Thursday, when she took the Oath of Office at the Senate chambers.
Word Is reached out to the singer, who promised to comment on the issue on social media soon.
A few months ago, Edday was irked by a fan who attacked her for tolerating a cheating man.
"So I shouldn’t live my life because my husband cheated?"
Edday and Samidoh have three children together, while he has two children with Karen Nyamu.
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