Romano: The moment he saw the hand coming for you he would already be enraged. The moment the hand connected to your skin he would be in a blind fury. Pity the man who hits his love at all, pity the man even more for hitting them in front of him. Before even you could fully react, he’d be a blur, flying “claws out” and ready to enact his revenge. He would punch first and consider asking questions later. For such a small man, when enraged, he packs a wallop. Once he’s dropped the offending excuse for a human being, he would turn his attention towards you and ask if you were alright. He’d still sound angry, he’d be coming off his anger-high, but his eyes would tell you he was scared and worried. He would reach for you with shaking hands, hug you, kiss you, and remove you from the situation. He would bring you to the police station so you could report what happened.
Spain: He would make an enraged noise the moment he saw the hand coming for you. He would try to throw himself between you and the man, but would not make it in him. His own fist, however, would already be flying in retaliation before anyone else could react to what just happened. One solid punch was all he needed to land before flying into a rage of questions, asking why he had done such a thing and “who do you think you are?!” he would slip between English and Spanish, not giving the man a chance to get a word in edgewise. He would draw himself up to his full height, and when finally out of words and curses to throw at the man, he would demand an apology and explanation. Then, he would take you, kiss you, ensure you were alright, then take you to the police station to file a report, then to the hospital to get looked at by a medical professional. Perhaps a little overboard (the hospital, not filing a police report), but he wanted to make sure you were 100% alright.
Italy: He never would have thought someone would ever have the desire to hit you - it must have been an accident! The moment he heard his hand connect with your face he would scream. He would break down in tears and grab you, pulling you into his chest and then pushing you to stand behind him. “Why would you do this?” he would cry out to the man, sobbing for some sort of reasonable explanation as to why he would do such a thing. His fear and concern would turn to rage when he did not get the answer he was looking for. He would not physically act out, but he would give the man a piece of his mind, before taking you by the hand and pulling you away. Once safe, he would thoroughly inspect you to make sure you were alright, all while dropping feather-light kisses to the top of your head, your cheeks, your hands, trying to reassure you (and himself) that everything was okay.