Do you have weird friends?

I had one reach out to me on facebook. Hadn't heard from her in over a year. her message read, 'are you going to the reunion'. Not even a "hey, how are you..."

When I reached out to her, however many years ago, after having seen her driving down a busy road, she acted like she didn't care to hear from me. She has been holding a grudge on me for something that happened 5+ years ago. (We made eye contact while driving)

What the hell do you want from me? Friend request denied...you aren't a friend. Never knew how to be one.