Our marriage has turned for the worst?

I've been right where you are - and I found the best thing to do was for everybody to take a break - cool off- one person can't hold a marriage together. Give him a few days - then sit down and talk to him - find out what he really wants to do. If there is no way to work this out, then you will have to make some decisions. This marriage can work if you both want it to, but it is gonna take both of you to do it.