The Rabbit Hole of the Tsundere Archetype

I was doing a little character work for my romance concept, and the more I thought about it, the more I realized that my self-insert has a lot of Tsundere traits.
She's not a stereotypical Tsundere, but I wanted to see if that term would at all be accurate to describe her and... Well, I went down a rabbit hole researchin how the term came to be. Shockingly, it goes a lot deeper than you'd think, so I'm gonna share some of what I've learned.

First of all, the term Tsundere has changed a lot over the years, initially being coined to describe a character who goes from distant and mean (tsuntsun,) to being loving and giving care (deredere.) It's supposed describe a characters development, going from one dynamic to another, starting at "tsun" and becoming "dere" over time. This was especially true in romantic visual novels, where the point of the Tsundere girl was to slowly warm up to you after initially disliking or even hating you, this extreme shift in dynamics made her route feel more rewarding to players. Classic Tsundere's are basically the enemies to lovers troupe. Her distant side is usually from a deeper fear of vulnerability as well, giving her a level of depth that makes her behavior understandable rather than completely contradictory.

In modern anime, the Tsundere has been simplified into a hot/cold girl who switches on a dime, and is usually just "like that," and is not intended to have any development. That, or her reason for being a Tsundere is never properly explored, and the guy just gains her love without any effort other than existing next to her for long enough. Either way, the Tsundere girl falls flat and feels more like a gimmick rather than a character.

Some people argue the second type of Tsundere should be called something else, but due to the troupe being directly tied to the original term, I think a simple descriptor to differentiate between them would be better and easier to implement. I've chosen to call the different troupes narrative tsundere, and inherent tsundere. Narrative describes how there's a reason why the Tsundere's closed off, as well as how she changes in the story, while inherent describes that she was just born that way, and won't be changing.
Technically this would mean the other type of modern Tsundere, where she lacks motivation to be the way she is or even to change, would still fall under narrative Tsundere. The thing that sets this more modern portrayal apart is that she's horribly written. She technically follows the storyline of a narrative Tsundere, but the narrative just doesn't make sense or feel earned in the slightest (which is kind of irrelevant to the troupe and has more to do with the writing in general.)

At the end of my research, I didn't get a clear answer whether my character Maxine would count as a Tsundere. In all honesty, she's like a mix of being an inherent and narrative Tsundere, but she's not traditional in it either way. She shows affection by acting sort of mean, constantly teasing, being critical, and punching or tackling you (with notable restraint from anything that could hurt more than just a little,) but that affection co-exists with her more direct and soft side. She likes a tough love that can be given and received by a partner, whether by being brutally honest or just to get the other persons reaction. In general, she struggles to express strong feelings in a non-aggressive way, because no other expression feels deep enough to her, it won't give the same relief for her. She also struggles to not get embarrassed when expressing more "mushy" feelings, and has a hard time opening up or being vulnerable, so that does give her a more traditional Tsundere edge. The thing that makes her different even in this way, is that while this fear does exist, she doesn't let it stop her from opening up, she wants the relationship more than she fears vulnerability.
This changes during particularly bad conflict though. Maxine is quick to distance herself when she feels threatened emotionally, it's like her vulnerability is about to blow up in her face. This only happens when she believes her partner has stopped loving her or is doing things to intentionally hurt her, but unfortunately, it's not difficult for her to fall into this mindset, even when that's not true at all. Her strong words and actions become expressions of hurt and betrayal, rather than to show love. This betrayal couldn't exist without prior love anyways, so it's not fully disconnected, but she acts with more cruelty and recklessness.

I think seeing Maxine as a sort of Tsundere character is both fun to explore and embarrassing, since she is a self-insert. I wonder if people would think this is interesting route to take this kind of archetype, or if she would be better defined by a different term?