For having low self-esteem, Ito is strangely assertive when it comes to forcing her ideal 'Sumika' onto Sumika. She's likely taking out her frustrations on her, but either way she's kind of an annoying idiot since she has next to nothing to be so buttblasted about. Even the latest onee-sama drama doesn't justify it since the person in question seems fully sincere in what she says about her.