It is a story about a father. He is business man about to retire or retired. His family has planned hiking trip but he is late so calles them they don't answer. So he goes directly to hiking trail and catches his wife and son having sex and is devastated. But moves on divorce wife and built mew life abd love. Later in story wife is regretful and stop her sons advance and living in agony. I think story more focuses on father than actual mother - son. Tried to find it in taboo section but couldn't find it. Maybe loving wives or romantic.