Why does this make me so angry?

[Madame M]

From what I've read, the male brain has major problems handling disrespect.

The lie is a form of disrespect in your mind, but it's possible you did something on facebook that *she* read as disrespect. She's uncomfortable confronting you with it, which is where the hair-twiddling comes in. She's not ignoring you, I don't think. She's trying to hide from you.

You'd do best just to let it go, and tell your lizard brain that she's not disrespecting you.

A lot of women have issues with men where they would prefer not to confront them directly -- they may be afraid of violence, or bad-mouthing. So, they take the weak way out, and try and laugh things off. I think you'll just have to learn to read that as being a weak way of avoiding you. Pity, and move on.