I feel like my (24F) friend (25F) keeps pretending to forget when I tell her “no”

I feel like my (24F) friend (25F) keeps pretending to forget when I tell her “no”
I (24F) have a close friend (25F) who I live with. We’ve been friends for 5 years and have lived with each other once earlier in our friendship and now again for the past year, we also live with her partner (24M) who I am close with as well.

Over the past year I’ve noticed…some concerning behaviors, at least to me. I noticed she is kinda, just mean to her partner and very reactive, responding to small mistakes with lots of anger and frustration.

She also has bragged to me, more than once, about yelling at customer service people. We were very close once but have distanced from each other more over the years because if I’m being honest, she can make me feel very uncomfortable. I come from an abusive home, and I kick myself every time I hear her tell me about her perceiving someone doing something wrong in public and “punishing” them through and angry tirade, but there is some automatic response that has me just listening awkwardly and trying to change the subject. People who I love and respect don’t like her and that colors my view of this situation. I say all of this and seriously doubt why I want to even correct her on this small behavior, but it just feels wrong.

Anyways, to the meat of things. She does this thing where she’ll ask me when I want to do something with her or for her and I’ll give her a response she visibly doesn’t like. Like “next week” or some other date later than she wants. Then she’ll (this is where the speculation comes in) the next day ask me “oh do you wanna do that thing tonight?” Or “when did you say you wanna do that thing again”. And despite all the other shitty things she does to me, this is the one that makes me feel manipulated.

This feels so silly to write out. But that’s the thing. Should I really confront her about this? Or is it a symptom of a larger problem?

TL;DR: I live with a longtime friend who mistreats people and makes me uncomfortable. Lately I feel like she’s pressuring me into doing things sooner than I agreed, and I’m growing resentful