Someone used a delicate side of my autism as an Art project

Hey! So this just happened to me tonight: I want your opinion:

A couple of months ago my autism degraded my health heavily making me wonder if it may be more severe than my initial diagnosis. I found something that fitted my description completely and I discussed it with my GP, but feeling worst, I dropped the aid. It caused several depression, loss of weight and a lot of suicidal thoughts (not the subject). Around the same time I meet this girl, I'll call her Mary. She tells me she's very autistic, and I tell her about my condition and suspicion of my decreased mental condition. I tell her I think I may have something close to an extreme version of  "Maladaptive Daydreaming". My parents thought I was naive sharing my thought with Mary that she'll tell everyone. 

I didn't care if she did, it might to me be very true. I was not going to see her again since we chose different art options "yes we are in an Art University"

No, she did worst.

Today, was a great day, first of all. Then I hear a girl talking with my tutor about her project and how it's about "people stuck in a different mental dimension"....... ok? Then after a while, the girl talking is about to leave, trying to depict at best her work while avoiding making it narrative (art). Suddenly she says it's about "maladaptive Daydreaming". I rise from my seat in astonishment and guess who I see? Mary. I was FURIOUS. I watch her leave in awe, she doesn't even notice I am in the room. The tutor looks at me and asks if something is wrong. I ask if I heard what I heard was correct. He says yes and then realises I may be that which Mary spoke of and I say "yes!" and he replies "Ok, I'll tell her to put you the credit!" I cry that that's NOT THE POINT!!

I cry and am still upset. I felt betrayed that she would not even ask me first knowing I had that mental condition and how sensible it can be. Understand that she would not know about this had I not talked to her about it in the first place. Autism can take many forms I know.

As an autistic person would you enjoy having a mental condition that may cause you harm and be used as an art project WITHOUT WARNING? Did I overreact or am I right to be upset?