Shalabh and Zarna Garg early in their relationship. Photo / Zarna Garg via The Washington PostShalabh and Zarna Garg early in their relationship. Photo / Zarna Garg via The Washington Post

Learn to argue

Julie Schwartz Gottman and John Gottman, who have been married for 39 years, work together as counsellors and researchers studying what makes a good marriage.Julie Schwartz Gottman and John Gottman, who have been married for 39 years, work together as counsellors and researchers studying what makes a good marriage.

Say thank you. For everything

Pam and Bob Nolan on their wedding day, October 7, 1978. Photo / Pam Nolan via The Washington PostPam and Bob Nolan on their wedding day, October 7, 1978. Photo / Pam Nolan via The Washington Post

Believe your relationship will last

Zarna Garg’s bridal portrait. Photo / Zarna Garg via The Washington PostZarna Garg’s bridal portrait. Photo / Zarna Garg via The Washington Post