This week’s dilemma is from Sam, who’s debating whether or not to tell his father that his mother is having an affair.

Sam came to Australia two years ago with his mum, while his dad stayed in their home country, South Africa, for financial reasons.

He says his mum has been cheating on his father, and in fact is now engaged to another man…despite the fact that technically they’re still married to each other.

Sam feels he has a responsibility to tell his dad. His mum won’t, and no one else knows about the situation.

But on the other hand, Sam is fearful that he might inflame his father’s diabetic condition. His father is already very sick, and the concern is this could be detrimental to his health. Sam’s also concerned as his family has a history of strokes. He fears the news could overwhelm his father.

• Should Sam tell his dad that his mum is getting remarried? Or wait for him to find out some other way? Or simply let him stay in the dark?

• What’s more important? Should Sam be more concerned about his father’s health – or filling him in on his mother’s plan to remarry?