So big issue i am seeing is that u r focused on the wedding and he lacks interest. This is followed by him not being enotionally open.

As for the wedding, he has a valid point with his concerbs. As men, we r normally screwed in any kind of divorce and short of some tax stuff and easier for children, we dobt really get much out of it that we couldnt get with just a dedicated dating relationship. His concerns may seem disheartening but remember that if he married u and somethinf happen he could b set to lose alot if u chose to b bitter in divorce. That level of risk is massive.

Next is the emotional state. It sucks he doesnt share his emotions but it is important to consider how men r socialized. We r taught early in life to toughen up (or man up depending on prefeted term) and deal with whatever happens. We r taught that being emotionally vulnerable is a sign of weakness to b avoided. He may have had previous relationships that burned him the moment he shown weakness. Maybe he feels embarressed or guilty trying to share, thinking he is just burdening u with his problems unnecessarily. U can attempt to reassure him in general but i can almost guarentee that, if he is uncomfortable with the marriage idea, the more u push for marriage the less he will b open. I wont give a what u should do cause i dont have enough info to do that but in general try to keep their perspective in mind and if u dont understand do as u have and ask questions. They will tell u, probably quickly, what they would prefer u do and u have to decide if it is worth it for u.