I have been in several LDRs, one after I swore never to do an LDR again. It really depends on what you and he are looking for in a relationship. Time together in person is more important to some than others. Is he willing to move to be with you when you go to grad school? It seems like that would be a good fresh start for both of you in a new place. Unfortunately LDRs put a lot of pressure on the relationship that isn't there for others, like do you move in together when you've never even lived in the same city? In my experience you can't really know what it's like to be with that person because in an LDR one of you is always visiting. It's hard to know what that would look like when you have a house 20 minutes down the road and a job you're going to at 8am the next day vs when you're pretty much on vacation visiting them.

If being together in person is important to you, figure out why it's not happening or can't happen in this relationship. Job, school, family, etc? Those things probably aren't going to resolve themselves, so one of you will have to sacrifice. It takes a lot more than love to make a relationship work, unfortunately If the relationship isn't meeting your needs and you think that isn't going to change anytime soon then maybe it's time to move on?