This is when companionship inventory would be helpful.

Last night I was home by myself. I decided that running was out of the question and could wait until Saturday, and that the laundry needed to be folded instead. After a general house pick-up, I ended up sitting on my back porch with my laptop, deep into my family history project when I heard my roommate walk into my bedroom. She introduced me to her friend who I recognized from church. I don't think we'd ever met, but I've been around for 6 years and had seen her many times before. I said something like "Oh yeah we've run that race in the Presidio together before. You have a few kids, right?" She seemed quite amazed that I knew who she was and acted like she had never seen me before. If you know me, you won't be shocked by this since I seem to remember faces and names better than most. Then she looked at me and said in the most nonjudgmental way, "Are you autistic?"

It may be time to re-asses how I interact with others.