zechs is actually not going to speak up into rather late into the relationship, when it's clear things are Very Serious. he's calm, extremely cold, and will make it absolutely clear that if you hurt his friend/familymember/what have you, he is infamous for his vengance

dorothy is just very blunt. it is not in your best interest to discover what a robot might do when she is not constrained by the three laws. have a nice day.

Shinjiro would pretend that he is not very invested in this relationship, and probably says that it's making his friend/family member act a bit ridiculous. but he will corner the s/o at some point when it proves to be serious to see if they are actually serious

definitely would curb-stomp anyone who would physically or emotionally abuse their partner, too. no questions asked. punted right out the door.

Gen doesn't make blatant threats, and he doesn't think he can pull it off. but he would make it clear that he has his friend/family's best interests in heart, and he would absolutely find rather diabolical revenge on someone who hurts someone he cares for. it just won't be a physical one.

Yuta is a hopeless romantic and wouldn't really think to threaten someone's SO. why? are they happy together? wait. they're not? Yuta would combine all of Zechs' streak for revenge and Shinjiro's protective anger into something far more frightening for any SO who hurts someone he cares about.

is the most likely to be traditionally in Dad Mode about this meme. very much the most stereotypical of shovel talk, respect my friend/family member or else, pat on the shoulder, but you wouldn't do that, right? how intimidating Noct manages to be probably depends on the setting though lmao

XD