What are some good scources to research high school couples seperated by college?

I am writing an article on high school couples once college starts, one goes to school and the other stays behind, etc. Any surveys, facts and figures on how long they typically last, what percentage stay together etc. would be helpful. Also, if you have any personal experience, you may include it with your first name and location, and I will include quotes if you would like.What are some good scources to research high school couples seperated by college?
i'm not there's a site or anything. however, i can tell you most relationships do NOT work out when you're separated by a huge distance. it's hard enough to make it work when you live down the street from one another.