Normal TDEE calculations don't apply to her at all. Sedentary is more active than she is. I have proven this on another thread (I think I might've been a bit tipsy, so I can't recall which one), but the multiplier for Sedentary applied to her BMR is too high because it assumes a typical 3-5K steps and sitting upright an an office job each day, which is far more than what our gorl does. She should be applying the considerably lower multiplier for Bedbound. Sedentary, as I recall, is 1.3-ish, whereas Bedbound (aka: walks to the toilet, to the fridge, to the chair in front of the counter to make slop and that's it) is 1.1 (1.0 is reserved for those who are comatose). It brings down her TDEE a goodly bit, which is why she continues to overeat.
Because 93 points from WW and a calorie calculation from MFP or any like app assumes that the person is breathing and herpalurping like a human being, not a gelatinous blob yelling at a thumb-butler to get her orang chickn.