The problem I found is that for me personally, she has become so irredeemable that I dont want to do her story. I'm aware that she looks sad on the camera's as do most of the girls as all of them have their own reasons to be where they are and most arent positive. I also understand the idea that she is clingy due to something bad happening in the past but all she does is hold up huge red flags of a sociopath so why would I want to get closer to them?
As for the more extreme issues, what I mean is she pulls a knife on Maria for getting close, only for the player character to calm Ashley down and then proceed to justify with Maria about how it isnt a big deal, brushing it off as almost a joke.
She berates, belittles and insults Lin despite supposedly not caring about elves with no way of stepping in to stop her. (I'm pretty sure that in one of those scenes, you get a friendship level up for Ashley for witnessing it but I could be wrong)
She berates, humiliates, physically changes and physically assaults the Android despite the Android trying desperately to get along with people, Ashley instead opting to forcefully change the Androids body and then proceeding to hit the Android in the face. Once again, there is pretty much no way to step in and stop her or at least tell Ashley how much of a sociopath she is.
She also proceeds to blackmail Felicity despite Felicity wanting nothing to do with Ashley, only for Ashley to then force Felicity to dress in skimpy clothing, blackmail more and force Felicity to lick her boots.
With all of this in mind, why would I in my right mind want to know her backstory? She could be the most abused person on the planet sexually and physically but she acts like such a complete sociopath that she has become irredeemable in my eyes and I am very confident there isnt a backstory in the world that would make me feel sympathy for her.
I get that as a writer, you would want everyone to see a character like Ashley from your perspective and that is completely understandable and admirable however from my personal real life experiences with people like Ashley, having no options to call her out on her actions or worse yet being forced to go along with them heavily detracts from the much more interesting stories at play, especially when she becomes involved in those other characters' stories. If all Ashley did was warn the other girls to back off, that would be fine even if there was verbal abuse but instead she opts to physically and verbally threaten and assault.
Edit: I also forgot to mention what I mean by raping the MC. Sneaking into someones room when they are asleep and trying to have sex with them would count as sexual assault as there is no consent. If I remember correctly, you cant even tell her to get out of the room at that point and have to go along with it once you wake up.