Maybe the first year was the 'honeymoon' period. Now that's over he's not trying to be perfect any more.
You are not overreacting, you are not crazy and no, you should not accept anger and bad treatment, you and your children deserve a better more peaceful stable home life than this.
I would put a time limit on it. Say, 6 months/a year.
I stuck a miserable marraige for 22 years, don't waste you life like I did. if he don't improve GET OUT.