According to the September 201o issue of Men’s Health magazine.

An Attitude of Gratitude

The next time your girlfriend springs for dinner, take note of your reactions. Partners who feel grateful for each other’s kind actions have stronger bonds than those who don’t, according to a study from the University of North Carolina at Chapel Hill. “Gratitude may help remind you of your partner’s positive qualities and inspire feelings of connection and bonding,” says study author Sara Algoe, PH.D.