After being fed to an eldritch horror she absolutely has some degree of thalassophobia/limnophobia/whatever. If No Strings on Me ever had a beach episode she'd probably hate it.
I also had the evil idea of her only taking cold showers because the steam from hot ones reminds her of the fog from the lake.
As I've said before, Mari and Aubrey are both in a "serve this entity or die" situation. Early on after being brought back, Mari does feel the entity trying to pull her back, but it gradually just. Lessens. And I can't say WHY yet because I wanna keep it a surprise :} I can say that she's not aware that she's doing it until a little later, then gets better at doing it deliberately. (though not without guilt)
Once she's recovered some of her memories and adjusts a bit more, she starts trying really hard to be who she was before. Unfortunately this doesn't work well because neither she nor anyone else remembers her past self enough for reference. That doesn't stop her from trying.
Going back to the guilt thing. Mari is the catalyst for a lot of other paranormal bullshit happening to her friends and family. Aubrey with the eyeball god thing, Dante losing his grasp on reality, Claire struggling to maintain control of her life (<- all of those are a whole other yap session that will reveal that NSOM is basically a knockoff version of TMA.) Mari is very much aware of this and hates it.
Unrelated note -- wink wink nudge nudge -- Mariana is definitely the type to try and sacrifice herself to try and help her loved ones, but the time where that might have worked has long since past.
My goal with writing Mari is to have her sort of haunt the narrative despite being right there.
I'm having a lot of fun exploring her relationships with the other characters. Not just her family but also people she met after the human sacrifice thing.
There is of course an inherent strain on her relationships with Claire and Dante because they KNOW each other, but they don't know each other. Mari does try to be her old self for their comfort, which again doesn't work very well. I can also see a few arguments starting over this. They're worried about Mari's well being, they want that familiarity, they miss her so much, they barely remember her.
On top of that there's the fear that she's not even Mariana at all. That she's some impersonator toying with their minds and emotions. This applies more with her and Dante, especially with his side of the eldritch bs (that I still need to work on). Both say and do things they regret during this time :))))
Explaining the eldritch entity stuff would be a lot easier if I actually listed the names I gave them, but doing that would reveal just how much NSOM is a knockoff version of TMA.
Her relationship with Elliot is less complicated for now since she literally just hates him. He was her boss and they weren't quite friends but she did have a level of respect for him, then he goes and leaves her to die.
Mari and Judith bond over their hatred of Elliot. They do kind of become friends the more they meet and Judith helps out with the aforementioned eldritch bullshit. Judith's side of things is yet another yap session that I will do eventually. maybe.
Percival deserves to have some infodumping too bc I've been neglecting him. He was originally just gonna be Gideon Gleeful 2.0 with his friendship turning into obsession, but I got bored with that plotline, so now he and Mari and Doomed Friends™. Mari found him refreshing because he never knew her past self so she has no expectations to live up to. Mayyyybe Percy still catches feelings for her but if so, I'd keep him a lot more chill about it. Regardless, they are both dealing with different entities but neither of they don't talk about it until later on. I'm still working on that part but they're prob gonna be doomed by the narrative.
Mari and Aubrey do have a similar relationship as Mari and Percy, given that Aubrey didn't know Mari for long before she disappeared. Their relationship gets more strained when Aubrey's paranormal stuff kicks in more.
I've now run out of ideas to yap about without spoiling too much. Enjoy my nonsense (ノ◕ヮ◕)ノ*:・゚✧