It's remarkable how many people here feel entitled to provide you with their very direct and unnuanced advice without knowing more than the two lines you gave us, merely on the basis of their own experiences (which do not necessarily translate to your situation) or "statistics".
Only you can decide whether or not you should end the relationship. That being said, perhaps you should explore for yourself why you are considering ending a relationship over a two-hour distance. Many people I know have managed far more challenging distances successfully. Are there other reasons why you consider ending the relationship? Are there specific aspects you are unsatisfied about? Or do you just want to "see what's out there" without having identified grievances about your boyfriend? It's fine to feel that way, and many people experience something similar at some point in their lives. Some do find that someone else is more compatible for them and others may not, and may at some point regret leaving someone they loved for something undefined and perhaps unrealistic.
In any case you're young, and it's likely that your preferences today are still subject to evolution, ie what you want now may not be what you want for yourself in five years. So try not to get to "existential" about the whole thing. Do what feels right and what you think is best for you at this stage in your life. Take time before deciding and talk to people you trust. Be cautious about other people's feelings but don't lead anyone on. You'll be fine.