I need help on how to have a serious talk with my boyfriend. All he seems to say is we will have to get married before than.

He knew from early on in our relationship my parents want to move out of state. Not to far.. But a few hours away. That has been the plan before we even got together. I want to get away from here. I have said that to him a million times. But he's talked about maybe moving but it's not few hour drive. Its not like you can go there, and back the same day.... But it's following his job. A transfer to a different location. Its been a year, and a half...this will be in a year or two.... Sometimes he seems okay with it... Others time he says we will have to be married by then...Idk. I don't want to stay in this area...