i don't know where to start.

i will start off by saying i have a boy friend, he is a great guy. the only thing is he lives over 10 hours away from me. we talk almost every night on the phone. he wants me to move to be with him and his daughter. he sent me a promise ring and a letter it made me cry when i read the letter he wrote me. i just don't know what to do, i have been hurt in the past but he understands why i am taking things slow. he wants to be there for me. he wants to help me get through these hard times i am having.