You have me confused. You state that you want to go with him. But you want him to give something up. Why? Is it because you would be leaving family? Is it because he has a dream and you don't? Is it because your dream is to stay home?
Be careful in this situation. You don't want to kill his dream and make him resent you. Likewise, you don't want to give up your dreams and resent him. Think a bit about your future in this situation. You may decide to let him go alone and pursue this dream job. If he finds that dream job, you may decide to alter your plans and join him out there. But don't go with him from the beginning if you are going to resent him for going.
I actually know many long married couples that dated in high school and then one moved to a far away city and the other stayed home or they went to different colleges. But these couples stayed in touch and their long term relationship actually grew closer!
There is nothing wrong with wishing him good luck in chasing his dream, and telling him you will miss him. Maybe he will decide to go. Maybe he will decide to stay. But make your own decision on what is good for you in the long term. Ultimately, a decision that is good for you will be good for him too.
