Spouses who work together double their exposure to harsh and angry words and the damage done can be hard to reverse.

the family unit will be less vulnerable when there is a spouse with a consistent, separate flow of income

We have emotions, preconceived notions and biases, and not all decisions can be made by consensus. 

It is much easier to focus on the role of husband, wife, father, mother if work conversations are kept separate

the family-focused spouse may begin to criticize the business-focused spouse while the business-focused spouse may begin to resent the lack of perceived support for the venture

Often the ability to express your feelings and be reassured of your personal worth and the unconditional love of another human is what is needed to be able to continue to function in the work setting

Spouses share a very intimate relationship, so wanting to share all parts of your life with your spouse is natural. 

It is natural to think if we enjoy one type of relationship with someone we would enjoy continuing that relationship in another setting. 

Should we chose our business partners based on rapport and friendship?

We need to surround ourselves with people that are skilled at the very areas we are weakest at.