How long should you go without talking after an argument? [I Need Advice]

A general rule of thumb is don't go to bed mad. The more one stresses about something the thicker it gets. (The more the imagination gets into it.) May not be but it could be why he was so cold next day. However silly it was something made him take a stand that he kept more hidden than what it was worth but now he's really believing it and getting madder or he's feeling like maybe he overreacted and he hasn't figured how to get out of it and save face. Maybe. That may be crazy talk on part.
It's hard to do sometimes to be a man always, as you were raised to believe a man should be can be hard to live up to because you forget the softer things like no one is perfect or learn to laugh at your self when you're wrong or goofy. I hope the makes sense. If your response is that I'm full of shit, I can believe that. No offense taken. It's like target practice if your butt is hitting all around butt close to the bullseye you are focusing on the center of the target and not at the bottom of the bullseye like you are suppose to focus. That last part is true lol. The rest is one man's dumb opinion.

Usually the silent treatment lasts until they accept your apology or are no longer upset.

For whatever reason, tge argument wasn't so silly to him it sounds like. Or he has other issues as well.

If yiu want something or expect something, tell him. Especially in a new relationship. He has no way of knowing until you do talk to him.

Good luck

Imagine spending life with a man-child like that.

You should never go to bed angry, is what my bf and I go by. He seems immature, no offense

with my ex, the silent treatment went on for months and months. Very very childish.

Don't let it get to a full year if you possibly can SO or not. 😒

Typical of an immature adult who was overly indulged and pampered as a child. So he resorts to the silent treatment to get his way. What you need to do is tell him you will not put up with that type of treatment from a grown man or he can just move back home to his mommy!!!

Tell him bout it when you get a chance.

Give it a few days

Leave him