I don't know the backstory here, but given your later posts I'm wondering whether this is a man who has deliberately provoked you so that he can proclaim loudly from the rooftops that you hit him.
Yes, it was wrong to hit him, especially in the face.
But he was repeatedly using unwanted physical force on you- you say he poked you hard, in the stomach. You repeatedly asked him to stop. He didn't stop- he poked you harder. He very cleverly used a form of assault that was hard enough to hurt you but could easily explained away as 'just joking around'.
Any reasonable person wouldn't poke their partner in the first place, but if they did they'd stop at the first time of asking. He kept on and on until you couldn't cope with the forceful physical contact (I don't know whether it would qualify as assault?).
His reaction also seems pre-meditated- you'd probably expect shock, or maybe anger, but he has shown you that he can do what the fuck he likes to you, he can utterly disregard your boundaries until you snap, and then he will make you grovel and use threats to keep you in line.
Yes, it was wrong to hit him, and 2 wrongs don't make a right. But if the tables were turned I'd say that a woman who repeatedly poked a man so that it hurt, and continued after being asked to stop, was behaving in an abusive or bullying manner as well.