Nearly 30% of respondents to a new survey said they regretted staying in the wrong relationship for too long. (Getty Images) Many of us have an ex we'd rather forget, or one we still think about years ...

Many of us have an ex we'd rather forget, or one we still think about years later… and according to new research, we're not alone. A survey has revealed Brits' top 20 regrets in life – and ...