The absence of social connection triggers the same primal alarm bells as hunger thirst and physical pain so this is what leads us to maintain friendships even when they are incompatible or we no longer feel satisfied. unhealthy friendships can do enormous damage to your confidence levels without you even realizing it. The people you choose to surround yourself with should be great spirits and they should inspire you to be the absolute best you can. If they're bringing you down it's probably time to move on if you don't enjoy their company move on.