Cassie has never had something that was entirely her own or had people that actually care about her before (she still wonders if Negan actually *cares* but that's her own insecurities) so hell yeah, she will make sure he knows his place if she thinks he's trying to swoop in. She will go down swinging, even if she's in the wrong. You won't have much of a shadow if I cut off your legs. Yes, she's violent and she's got a temper. Fair warning to you and your muse. I doubt she'd actually touch him though, ha. That might piss off daddy.