long-distance relationship
noun
a romantic relationship between two people who live far apart and so are unable to meet on a frequent basis.
"staying in touch is the key to surviving a long-distance relationship"
When Harry saw that he had a new follower on Twitter, it didn’t surprise him. What did surprise him was that the follower DM’ed him. Niall and Harry then got talking and soon became best friends, skyping and facetiming whenever they could. It wasn’t long before Harry had started to get feelings towards the blonde lad but there was one problem. Harry lived in New York and Niall lived in London.