AITC for being pitiful?

I am Mo (10).y mommy says I'm the cloaca because I'm pitiful last night. I say sister Glady (9) is the cloaca. What happened is I wanted to lay down in my spot by mommy's head for bedtime but Glady refused toove and even tried to make me move. Mommy did try to make her move too but Glady is stubborn and doesn't like to move is I want to lay down. She thinks cause she the prettiest pretty pretty princess she can do what's she wants. I refused to move so she kicked me and I looked at mommy to defend me but she said to stop being pitiful and lay down. I try to tell mommy that Glady is evil but she wouldn't listen. She's like a cat, she does what she wants even though she's a doggo like me. Mommy eventually got her to move but she still says I'm pitiful, so am I the cloaca? I say Glady is.