I'm having a non-traditional wedding at a sports venue. The capacity limit is pretty small, so we could only invite close family and a couple of friends. I honestly had assumed some family members would not be able to make it, but everyone has confirmed. I have a friend from high school that I'm not super close to anymore, but I think she still thinks of me as one of her closer friends. She has a few things going on that result in her not always being super mentally stable. One of my close friends is encouraging me to let her know that she's not invited out of a fear that she could overreact if she found out another way. What would be the best way to handle this? Tell her or continue to not say anything unless she asks?