Those questioned in the study - published in the journal Computers In Human Behaviour - were all in relationships, and 74% were women.

Participants were asked about a number of texting habits, including frequency of initiation, showing affection, bringing up an issue, saying hello or expressing anger.

Researchers discovered a close correlation between relationship happiness and similar texting habits. This was true both for actual similarities, and for couples who perceived their texting style to be alike.

“Greater perceived similarity between oneself and one’s partner on each individual [criterion] was correlated with greater relationship satisfaction,” the researchers wrote. “Greater overall similarity in texting behaviour was also correlated with greater satisfaction.”

The surprising secret to a happy millennial relationship