The speed of it all, the hands to the throat, the instant denial, and then the 'everything in his power not to do it again' are all huge red flags.
How much personal commitment or willpower does it take not to hit your wife, pin her to a wall, and strangle her? What he's saying there is, "Don't push me because I'm going to repeat this performance if you do."
How comfortable do you feel disagreeing with your husband over anything today?
How comfortable do you feel about sex with him?
Your husband has made a decision to fundamentally change the terms on which your marriage will proceed.
From now on it will be conducted on a basis of you watching him for signs that he's getting angry, and backing off.
You will not say what's on your mind for fear of setting him off.
You will agree with him over matters that are important to you just to keep him from hitting you, pinning you against the wall, and putting his hands to your throat.
You may not feel you have the safety to say no to sex. In other words, he will be free to rape you.
You need to talk to Women's Aid.
0808 2000 247.
You need tonstart making plans to leave and formally end the relationship. It's already over - all you need is the decree from the court.
Look into renting, even a flatshare.
You can tell your family when it's a done deal. Or if you have any family member you can confide in, please do that soon and spare yourself the charade of a united front at Christmas.