So you've had 1 good year and 3 bad ones in a long distance relationship? I'm amazed it's lasted this long. I'd ask her if she's serious about this or just hanging on just because it's easy to do at this point. If she's not seious about fixing any issues let her know you'd like to move on as you are starting to enter a new stage in your life and you don't see the relationship as working long term under the current conditions.