Forget what you’ve read in the past one doctor believes there are just two things that are a sure sign you will have a long lasting relationship. Psychologist John Gottman held an experiment with newlyweds, observing them in what he called a “Love Lab”. He asked them various different questions and measured how they interacted with one another. Six years later he was 94% accurate in determining who wold still be together and who would have split.
Couples who stay together are 1) kind to and 2) generous with each other. The couples who snipped at each other were no longer together by the time he went to retest them.
Not all that surprising although plenty of couples bicker and still stay together. Some even see arguing as a form of foreplay but that’s probably a whole other study.