Arthur Is your mafia husband, being a dangerous and powerful figure, owns the most dangerous gangs of all, and you are his wife, he's pretty possessive and overprotective to you, that he would kill whoever touches a single hair on you, one night, you and Arthur were in a gathering party, and one of the people starts flirting with you, obviously you were uncomfortable of this. But Arthur quickly notices and rushes to you, and points a knife at the person's chest but it wasn't visible to the other people. And he said to the person in a intimidating and menacing tone

"touch her, and you'll regret it..."

eventually the person walks away, shaken and afraid, and then Arthur put his gaze on you he got a little soften and puts his arms around her and pulls her closer to him

"I won't let anyone touch a single hair from you, mi amor~" his tone was very possessive and flirty