SUBREDDIT: r/relationships
TITLE: I [F/21] just dropped off my SO [M/22] at the airport, ending our expiration date relationship
POST: Previously posted here: 

Basically my SO and I were in the most amazing relationship that had an expiration date with him leaving the country. Today I just dropped him off at the airport and it was the hardest thing I've ever had to do. We wrote each other the sweetest plane letters and cried. In my plane letter, I told him that after I'm done school in a year, I'd be happy to go move to where he is and he wrote that he's open to future possibilities should our paths ever cross again. 

I don't really know where I'm going with this..I just really wanted to get this off my chest. We plan to stay in contact and remain close, I don't know if this will get too hard or if it's even a good idea. I guess I'm just lost and confused as to what to do next..and how to feel better about this break up
TL;DR: 
SO and I ended our expiration date relationship with future possibility of getting back together. Plan to remain friends for the time being, but not sure what to do?