Man finds out his son is his uncle after girlfriend's affair with his granddad

A depressed man.

Families can be complicated, especially when couples separate or there has been infidelity somewhere along the line. But, there are few situations quite as complicated as this man's family tree, after he discovered his son is actually his uncle.

TikTok user @stacks1400 made the devastating realisation after discovering his girlfriend, the mother of his child, had been having an affair with his very own grandfather while they were living with him.