It sounds like you two have different goals in mind. The key is not who will get their choice but a compromise. You have to decide how badly you want to get married. Is it at the expense of this relationship or can you find a compromise that you can both live with. Maybe a long term plan for marriage or residing together for awhile. If in the end he won't change his mind then it is up to you whether you can be in this relationship as it is. You should be able to talk about this. Whatever his decision is right now is up to you whether it is something you can live with. Only you can decide if it is worth sticking around. I would say calmly to him that you just want to know down the road what he is willing to do and what he isn't. Don't bring up marriage. Think of all the possibilities. If he says he can only live together then you know that is his decision. It is up to you to depend on whether he changes his mind. There is also couples counseling if you want a professional but this seems like a discussion for the two of you.
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