Valentine's Day: How healthy is your relationship?

Every relationship has stresses and strains, but how healthy is yours?

(This quiz may not display properly in some older versions of some browsers. It will work on Chrome 32, Internet Explorer 11, Safari 6 and Firefox 26, among others.)

Scoring: never - 0, almost never - 1, sometimes - 2, often - 3 and very often - 4. (For question seven, scoring is reversed.)