A relationship between 0 and 1.

I can’t understand how people believe in the human relationship either 0 or 1, not between 0 and 1… Most people believe in the 0 or 1 interpersonal relationship… like he is my friend…Or he is not my friend… umm! he is my friend… that kind of relationship like between 0 and 1 … Human relationship also should be like a probability theory… The probability of a human relation between 0 and 1… According to Newtonian concept, there is no case of probability if all the condition is known… But in human relation, do we know all the condition??? Can we able to know all the attribute of a human being??? Never… Suppose you know a person from a past few years… You may able to know some good things and bad things about a person…But time is the best counselor for any kind of relationship… Later you may know some attributes of that person which you were not aware of it before… Something you like and something you don’t like… But no one in the earth has a right to comments on anyone personal way of thinking… Because no one is perfect in human nature… and everyone is right in their own way… Everyone does the things what their conscience permits to do that… One more thing a person behavior also varies in some special case… that depends on the mood of a person… or the thoughts roaming around in his/her mind… He/she may behave something strange and the other person does not easily digest the way he/she behave… The other person may take it as wrong way… But the unexpressed thought in a person was not disclosed at that time… Later if you get the original reason… Then only it looks logical… Thus in human relationship not all the condition is known and always lies between 0 and 1.