Lum could not stop thinking about how close you and Shinobu were.

Lum: I'm going to make sure that girl never gets near my Darling ever again! But how?

She began to think and ponder ideas, and then-

Lum: Of course!

Soon...

You noticed that Shinobu didn't show up at school at all.

(Y/N): Huh?! Where is Shinobu?

The whole time throughout class, you couldn't stop worrying about her. And then you realized-

(Y/N): LUM!

With that...

You confronted Lum on her crime.

Lum: Welcome home Darling!!

(Y/N): Lum, where is Shinobu?

Lum: I don't know anyone named Shinobu. Whoever could you be talking about?

(Y/N): WHERE'S MY GIRLFRIEND?!

???: MMMMMMMMMMM!!!

(Y/N): What was that?

Lum: Oh! Nothing!

(Y/N): Lum, where did you hide her?

Lum: Uh .... Nowhere.

You followed the sound of the noise, and-

You found Shinobu tied up and mouth gagged in the closet!

(Y/N): SHINOBU!!!

You freed her and she hugged you.

Shinobu: (Y/N)! I was so scared! Thank you! I love you!

(Y/N): I love you too Shinobu. Don't worry; everything is going to be alright. Okay?

Shinobu: Yes. I understand.

You both kissed and turned angrily to Lum.

(Y/N): LUM! What the hell?!

Lum: Darling ... I can't help it! I'm in love with you! I-

(Y/N): I was kind enough to let you stay! I'm fine with you being around! But leave Shinobu alone okay?! She's my god damn girlfriend! If you want to date me, maybe I'm willing to give you the benefit of the doubt, but you need to stop this!

Shinobu: (Y/N), are you sure about this? SHE PUT ME IN THERE!

Lum: Hmph. You're not even as cute as I am.

Shinobu: SAY THAT AGAIN, SPACE GIRL!

Lum: I'm cuter than you, ugly!

Shinobu: Okay! That does it!

She punched Lum, and the two began to fight over and over with Lum electrocuting Shinobu, and Shinobu bending Lum's legs with sheer strength!

(Y/N): GIRLS!! ENOUGH!!

They both stopped.

(Y/N): I need a break. Please, if you're going to date me Lum, try to be friends with Shinobu ... please?!

Lum: .... Fine.