It breaks my heart

I've been seeing this guy for a minute but he's here for the summer. He stays 3 hours away, which isn't bad but he is always so busy with his schedule. He has broken up with girls because he was busy. I really him though. He's always like "Lindsey?... I like you .. a lot" or "If I lived here you would be mine" and "it's crazy how I'm head over heels already" and it's seems very sincere and honest, how he looks at me and all is just WOW, never had that before. We see each other everyday. I just honestly really like him and it's crazy but seeing how amazing he is hurts I can't be with him and only for the summer