How do the president and Mrs. Obama keep things happy in their marriage?

 

It seems that the couple doesn't make a huge deal out of the lover's holiday, since they celebrate Michelle's birthday on Jan. 17th, and by the time February 14th rolls around they are pretty tired. She says that she's a huge believer in laughing and smiling with your partner, which has held their union tight throughout the years.

What do you think of their relationship?