What's so Abnormal?

I still feel weird about it. I know it's pretty immature of me for being like this. But it's so damn uncomfortable when I think about it. To be aware that they've judged me somehow in someways behind my back and now pretend that nothing really happened, make it not fine at all. What's upsetting is the fact that I know this person, who I thought, understood my point of view or just understood me as her friend, to stand her point, to stand on what we've been discussing together...but of course not, she sort of followed the point of view of the majority. And like this, I didn't get any news on what they talked about since then.

Did you know that the definition of being normal is what acceptable for the majority? Let's say that out of 50 people there're 40 who eat bananas for lunch, then that's a normality.