When people split up, it can often have devastating effects on the kids. In the drama and turmoil of divorce, sometimes parents don’t realize how much stress their children are taking on. Kids also have to adjust to the new family dynamic and try to deal with any new members who might be added to the mix.
This is what a teen faced after his father had two children after his divorce. The dad kept trying to force a relationship between the kids and wanted his ex-wife to share in the parenting duties.
More info: Reddit