To what extent does debt influence relationship success?

According to this report from the New York Post, 58% of Americans wouldn't marry someone with significant debt.

The study, from legal industry site Avvo, also found that most people would feel uncomfortable in a relationship where they were the main breadwinner.

Women were less comfortable than men taking full responsibility for household income, with 69% of women feeling uncomfortable compared to 46% of men.

There's another study referenced in the article, which found a correlation between credit scores and chances of separation. 

When it comes to relationships, money is clearly an important factor.

Leaving aside the ridiculous quote in the article from the relationship advice columnist, who claims a common first date question is 'What number is your credit score?', couples need to discuss their attitudes to money and agree on a joint approach to their long-term financial planning.