TL;DR
How do I tell this Facebook friend that they might be on the autism spectrum without being too intrusive?
Background
I have this Facebook friend that I care deeply about and with whom I interact often.
This person cares a lot and is very compassionate. They don't know it but all the links and messages they posted really helped me and changed me a lot. And, today, I believe I am a better person because of them.
It's also this person that helped me realize (thanks to the article about autism they posted) that I'm on the autism spectrum. And, I strongly believe that, at the time they were posting those links, they were wondering if they were on the spectrum themselves.
They never posted that they discovered that they were in the spectrum and, giving that they share a lot about really personal matter on Facebook, I believe they would have posted that.
The Problem
Not knowing that you are on the autism spectrum is fine unless it makes you suffer. Two days ago, this person posted:
I didn't understand what he was saying [..] I see that he thinks I'm stupid. Maybe I'm stupid.
It's usual for people on the autism spectrum to not understand what a neurotypical person is saying because we (people on the autism spectrum) don't have the same way of thinking. It's like speaking in a foreign language where there are cultural differences involved.
I believe that, if my Facebook friend knew that they were on the spectrum, they wouldn't have thought they were stupid. It's easier to accept oneself when you know why you are so different. At least, it was easier for me.
That is the reason why I want to suggest to this person that they might be on the spectrum.
What I have tried
Nothing (yet).
Question
How do I suggest to this Facebook friend that they might be on the spectrum?
Note and clarification
I never saw this person "in real life" and don't plan to but, based on what they have been posting for the last 5 years, I think there is a really good chance that they are on the autism spectrum.
Wondering if you are on the autism spectrum isn't the same thing as taking it seriously enough to ask for a professional diagnostic. And I know from experience that having someone apart for yourself who also believe you are on the spectrum can help take this possibility more seriously (it helped me, even if I still waited two years after that before asking for an actual diagnostic).
We don't have any mutual friend.
This friend have, in the past, posting things that show interest in knowing why they were the way they were and why they were soooo tired all the time (for people who don't know, tiredness can be an indication that someone is on the autism spectrum).