A real friend is never going to betray,humilate or leave you behind, no,they will always know how much it hurts you without saying it to them,when you are happy, even I you don't smile,they are people who can see through the outside appearance that you show daily.In my opinion the biggest quality of a friend is how he listens to you,a lot of times in life we only need to be listened ,to talk about the problems that we commonly get ourselves into.
PS . Text frumos!