About the need to be liked by other people

once i start analysing myself to get more clarity about my actions and world around me, one thing that bubbles up from my past experiences is
I do a lot of things ( e.g. small lies, show-off ) to impress other peoples.
maybe this could be the visible symptoms of bigger personality issues.

why I feel this need to be liked if not admired by other people ?
why am I even ready to try unethical approach to get attention of people ?why I feel bad when people don’t like me ?

Dr. Roger Covin in his book The Need To Be Liked explains it in great detail, our need to be liked by other people is one of our fundamental need designed for our survival. From evolution point of view it requires for human race to live in groups and in order to join a group you need to be likeable enough. Although we came so far that in reality it is not required any more yet our brains are designed that way.

So...