What's his deal? Why won't he talk to me?!

I can always tell when something is bugging my hubby of 16 years. I usually ask whats wrong or you wanna talk. He lies says 'Nothing is wrong why?'

Anyways last night i knew he was bothered by something

I said Hey, everything ok?

He said I'm good

I said I know something is wrong, if you wanna talk I'm here

He jumped at me said i was the moody one and something is wrong with me....I legit was in a good mood

Anyways 3 hours later

he said wanna know what was wrong earlier?

I said of course, thats why I asked you earlier

he said I am depressed..... Which I know he is, He then proceded to tell me if i know something is wrong with him to never ask again as he doesn't wanna talk to me...and to drop it.

I'm heavy hearted he feels this way....

whats his deal???