I would think that you'd have to be in a long, extremely trusting relationship with anyone, SP or otherwise, before they'd want to expose themself to the dangers/pitfalls of being alone with someone who's
imbibing an unknown substance. Losing control of yourself could obviously put both you and/or her in danger besides the possibility of her having to deal with any medical distress you may encounter.
You may luck out(?) and find a provider with a mindset close to yours, but for most it's business and the cost/benefit analysis won't pass muster.
Just IMHO and experience of course.
Best of luck.