There’s a good explanation as to why most of us stay in dead end relationships.
Why we continue to invest time, money and effort into people who have already gobbled a lion’s share of our lives.
Researchers believe it might be because of the “sunk cost effect”.
A “sunk cost” is a term generally applied in business or economics. It’s when a cost that has been incurred cannot be recovered.
Psychologists say the “sunk cost effect” occurs “when a prior investment in one option leads to a continuous investment in that option, despite not being the best decision.”
Think of it like this: you buy a ticket to see a film. Halfway through you realise the film is rubbish but you've already spent money on the ticket, invested time in going and devoted effort to the whole shebang.