You did, you just chose to ignore the signs.

Sometimes it's really not that obvious. I think these are the ones that become shrinking violets and don't talk very much out of social anxiety. This lot can be misinterpreted as rude or antisocial even though that's not their intention.

Overcompensation for insecurities is much easier to spot. The Kardashian-Jenners can exude fake confidence until the botox in their faces turns blue. Truly confident, self-loving people do not attempt to alter every little detail of their appearance with the aim of looking like totally different people. Nor do they spend money on stupid nouveau riche items that depreciate in value just to show off to their friends and followers on social media.