Less than 2 percent of marriages belong to high school sweethearts, according to Brandon Gaille. Showing the highly unlikely event of high school couples actually lasting. Only 1 out of 5 people who stay in high school relationships end up making it to college, according to Brandon Gaille.

How long does a high school relationship last?

By age 16, relationships last an average of two years, writes Fogarty. Most long-term relationships do not occur early, and during the teen years, you are likely to see group dating, according to Melanie Greenberg, Ph. D., in the article titled The Neuroscience of Relationship Breakups, in Psychology Today.

Is it weird for a 15 to date a 17?

People of any age can date each other. If either of them are under age their parents have to agree to the dating. It is never illegal to date with parental approval.