Given that the human body is 60% water, "spontaneous combustion" isn't really a thing that would happen just from exposure to fire.
No, they didn't touch the woman to be set on fire, but instead these anomalous flames manifested and killed them after the woman had started burning. These affected individuals were ones that were close to her but had only used her.
does that mean that she just didn't have anyone who cared about her too
Nope. This idea started off with myself, so I can answer this fairly well here. This means that she doesn't know that others care about her, that it's her attitude that makes it seem like she's always fine. The woman is always helping others, but she doesn't know what to do with her own life. Not wanting to burden others, she adorns an aloof personality, pushing people away at her own expense because she thinks she shouldn't bother others.
Who are these people that she loves and why did none of them even notice that she was running herself ragged?
Friends, families and colleagues. Second part answered above.
I'm also unsure why the flames are blue
I had a little image that the intensity of flames could correlate to intensity of emotions; this woman is incredibly conflicted and the colour of the flames represent that. What is conflicting her is the idea that she can't give up being overly-altruistic, yet realises she needs to take care of herself. One part, which is her inherent kindness, is combating with the other part that wants to preserve herself. Like, really intense inability to compromise care for self and others.
Also, if she's apparently so jaded, why didn't she start taking breaks from being so loving earlier?
I realised I didn't include in the idea that this is her nature. She's literally unable to, as my answer above shows.
How is she obligated in this way? Is it an anomalous compulsion? A form of mental illness? Something else entirely?
It's who she is. I guess you can call it a mental illness where neglecting oneself while caring too much about opinions and life of others? Absolutely not anomalous compulsion, she's jsut hardwired that way since birth.
How would the Foundation come to this conclusion?
This is kind of hard to answer, because although I would just like to say interviews because honestly the anomaly itself (the burning woman) is not that hostile and the flames don't just spread everywhere; they act just like normal fire when they catch on to something else. On the other hand, it's an unsatisfying answer, but that's all I have.
I personally wouldn't have assumed that the "kindness" is keeping this person alive. Seems more like the complete opposite,
She would know. It's the dual natures in her emotion landscape conflicting with each other. One, the really strong will to help others and love others that she was born with and the other, the sense of self-preservation that has been coded in all humans. These flames represent her kindness burning out at first, because she thinks that no one should deserve her kindness anymore. She's just become too empty to want to help others. In the end, she reaches a compromise. As the flames of kindness burn bright and blue once more, a small, green fire at the place of her own heart materialises. This signifies that she finally understands the importance of self-preservation while learning to still be kind.
I changed it after your feedback.
I'm admittedly surprised they didn't just sedate her and provide some antidepressents as well.
This, I'm unsure how to go along with. I don't necessarily need therapy to work on her, but I suppose the interviews with someone that actually seemed to care about her, would cause a therapeutic effect for the burning woman? I'll figure it out as I go along as this seems to be an easily-solved issue if I look at the direction my story is going.
This just feels cheesy and overdramatic for me.
Same. I'm just gonna delete this because it feels so bad as an ending. She doesn't have to thank them, she can go out in her own way.