There are a few friends in life who let you get away with nothing. Sometimes you hate them and never want to see them again, regretting having let them in so far in your life. But just the fact that they have stuck around despite the many flaws they have clearly pointed out makes them the best people to keep in your life. That they keep you on your toes, pushing you to those higher plateaus only they know you can achieve makes them angels in your life.