Popsugar Love Relationships What It's Like to Stay With Your High School Sweetheart 20 Things You'll Understand If You're Still With Your High School Sweetheart August 26, 2017 by Brinton Parker View On One Page Photo 13 of 20 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 You hit serious milestones — like being together for a decade — way earlier than all of your friends. Previous Next Start Slideshow RelationshipsDatingHigh School