This is disrespectful and unhealthy on so many levels. I would tell him once, and only once, that the silent treatment is a dealbreaker for you and he needs to learn how to use his big boy words by tomorrow or you are leaving. And then follow through.
Just Google silent treatment and you will see how unhealthy this is.
Honestly? Most women I know do not have strong feelings on this. I dont. I think the only people that do are the ones that are insecure in their decision and feel the need to justify it or those who feel judged.