There's hell in hello but there's good in goodbye. that's why you shouldn't be afraid of goodbye but careful with the hello.
we will only know the true nature of a person after we have known them for some time.if time heal all wound. than only time will tell about the people we meet in our life.
I have done my share of knowing people and finding out their true nature after some time and its true you can't judge a book by its cover so be careful of the people you just meet