My boyfriend and I are about two hours away from each other, which compared to others isn't bad. We see each other about every other weekend and his hometown is like 20-30 minutes from my hometown so breaks are really nice. We talk everyday and I like to think we act normal, we talk about the same type of stuff that we'd talk about over dinner every night and I think that's the important part. Once we graduate, we'll be moving together. I'll get a job wherever he gets into med school since it will be easier for me to find a job than him to get into a med school in the area where I want to live lol.
I know a few other 2-4 hour long distance relationships that seem to be working okay. I think it would be harder if you're dating someone who likes to go out and party and stuff. I'm a natural worrier (like safety, not really cheating and stuff) so when I don't hear from him when he says he'll be around I immediately start to think the building burned down with him inside or something LOL. But he's used to that about me so it works
I think the most important part is just acting normal. Not being afraid to argue, because some people don't know there's a problem unless you tell them and if you don't tell them then it won't be fixed and you'll just get more upset.