How long do most high school relationships last?

How long do most high school relationships last? It’s a period that lasts on average between 12 and 18 months. And it happens regardless of how old you are when the relationship gets going, Ms Cribb explains. For most of us, moving from the limerence phase into a stage of more “mature love” is something we’ll experience several times in our life.

It’s a period that lasts on average between 12 and 18 months. And it happens regardless of how old you are when the relationship gets going, Ms Cribb explains. For most of us, moving from the limerence phase into a stage of more “mature love” is something we’ll experience several times in our life.