"You are mine now, whether you like it or not, but then again, I'm sure you'll learn to love it in time~"

"You're getting pretty close to Haru. A little too close. You want to know what happens to people who get too close to Haru? Well... let's just say that they disappear without a trace... Actually that's not true. They die, I kill them, in the most gruesome of ways. Tell me, have you ever wondered what the inside of your own skull looks like? What about your stomach? Have you ever seen the inside of that? Do you want to? No? Gooood~ Now, you're going to run along and pretend everything is just fine, alright? That's it, good girl~"

Make up whatever you like for this last thing, just have it relate to the character. Could be a psychotic laugh, a sexy and seductive monologue, some sort of sweetheart thing that she'd say to Haru, it doesn't matter, just make it good.