It also depends on how good you are in choosing lovers.

Many people a pretty bad at this and break up (badly) every few years.

These problems won't work out for a start-up.

Also, many start-ups fail and moneyproblems can easily kill relationships.

But I know a few people, who are in a relationship and working together for years. They don't make big money, but their companies aren't in trouble either.

If they are your co-founder they shouldn't be a bad break up anyway. You have to be pickier about co-founders than lovers. Most people will have more lovers in their lifetime than co-founders.

> Don't date in the workplace

I think that really depends on your mentality. I hear this quite a bit, and I passed on a relationship opportunity because of this rule. However, at the defense contractor I used to work for I knew at least half a dozen couples whose marriages were forged at the company.

You didn't read what I said. The Dating doesn't happen in the work place. Not don't date co-workers.