Designer clothes, pricey jewels, and expensive vacations definitely provide for a fancy lifestyle, but is it really enough? According to a recent study done by The Journal of Couple & Relationship Therapy suggests that materialistic couples are unhappier and fight more.

Researchers studied 1,700 couples across the nation and asked about their relationship, and how much they valued having money and a large amount of possessions. One in five couples both admitted a strong love of money, but these couples also said money was their main source of conflict. Money-loving couples scored 10 to 15 percent worse on “relationship stability” than couples who said money was not important.

So I guess there is more to having an incredible sex life with the person you are dating.

“Couples where both spouses are materialistic were worse off on nearly every measure we looked at,” study author Dr. Jason Carroll, professor of family life at Brigham Young University in Provo, Utah, said in a written statement. “There is a pervasive pattern in the data of eroding communication, poor conflict resolution and low responsiveness to each other.”

There is obviously more to happiness in a relationship than materialistic possessions and wealth, and here is the scientific proof to back it up.