Yes, it is really really like really painful when it comes to a long distance relationship.
I can speak from my own experience because we were together in the same city for almost 4.5 years of our relationship. Now, I have moved to some other location. We are totally not happy with it. It has been almost 2 month we didn't meet for the first time in last 8 years and 4.5 years of our relationship. We want to find a solution as it is affecting our happiness.