Some good advice here. Relate helped me and DP at a very sticky time.
My relationship with a man broke down because I constantly went on at him to discuss things, get things out in the open, demand to know why he said that or this. He said I was negative, picking at him, getting at him and couldn't we just live our lives rather than discuss every little detail.
He was right - and he was wrong. Happy medium as Hermione said. In the end we split. And it had been six years. There were major issues and we did need to talk more - but he was a nice guy - and I could have just let it go sometimes. He said he felt hounded.
I have been on the receiving end of this too - especially in the early days when kids were young and I was so tired, not really interested in sex and trying to work as well.
DP "What's wrong"?, "You look miserable",
Me - "No I'm fine, just tired"
DP "Are you sure, you seem cross and you have hardly looked at me since you came in "
Me "I'm tired that's all - I just need to have five minutes to myself"
DP "You are always tired - what have I done this time?"
Me "Nothing. I'd just like five minutes peace before I start the cooking" -
DP "There you are, you are pissed off - I knew you were - and it isn't always you who does the cooking. I'm tired too but I don't take it out on you"
Me "I'm fine - can I just drink my tea please?" (Irritated)
DP "Why don't you ever want to talk about it?
Me "About what??!!"
DP "About the fact that you are always off with me, you hardly speak to me when you get in, we never have any fun anymore, - or any sex"
Me " Oh FFS!!!!"
Sometimes it will sort itself out in its own time and we all need a bit of space for ourselves I am not saying that this is your relationship - not at all - I am saying this was mine and I have learnt that not everything needs to be forensically discussed.
If you are unhappy it needs to be resolved but I don't think that forcing him to talk - or "someone will move out" - is going to help matters. I think I'd give him a bit of space, do some stuff for yourself, (go out, see people, get "glammed up" and enjoy yourself), and I think the chances are he will come round. Then there will be an opportunty to talk when it isn't so confrontational and you are feeling better.
Good luck OP.