<human>: Background info: Stepmom's son/my stepbrother [10 M] was diagnosed as having Asperger's at a very young age. She always flaunts about how she's a huge deal in the Autism society and tries to portray a survival mom who knows all.

I was diagnosed as Asperger's at age 15. It was hard to come to terms with and I am still learning every day.

Tonight, after Stepmom came home from being gone all day, she came and sat down at the dinner table with my dad [48], and my brother [18]. I asked where she had been all day, and she told me she was at a salon. I said, "Really, for that long? Your hair doesn't even look different!" 

Now let me just say that these situations are where my aspie just falls right out of my mouth. "Thinking before speaking" is a concept I'm trying hard to remember when I'm talking to other people, especially in an environment where I'm supposed to feel safe and understood.

And after my unintentional insult, Stepmom looks at me, smiles, and says, "And that's why all your friends leave you." My dad, who I am closest with in my family of disconnect, said nothing. My brother laughed at me and continued to joke about it.

Asperger's has caused me a great deal of trouble with being social. I have very few friends and still struggle to understand them and if what I'm doing is right. It's a very fragile subject for me, because going so many years undiagnosed left me wondering why I was constantly shunned and left feeling humiliated in social situations where I didn't react appropriately.

How can I talk to Stepmom about this? My opinion is that she said a very harsh, hypocritical thing that hurt me deep. But knowing her, I'm expecting that blame will be turned upon me via pointing fingers and highlighting my flaws. Her passive-aggressiveness and the way she fights with me and twists the situation around so that I get confused frightens me because it works and then it's my fault again.

Can you give me a shortened version of the text?
<bot>: Struggles with Asperger's led to my stepmom telling me "that's why all your friends leave you." How do I approach her about this?