In our point of view, the value someone gives to another person is called FRIENDSHIP. An example is when you say to one person that he or she is his/her best friend.The other day I went with my friend to the cinema and we laugh a lot, jajaja, it was so funny.
If you have a bad day, or you feel nervous about something, you cannot be the same as when you were with your friend, so your friendship with the other person won´t be the same as before.
All in all, you have to be comfortable with your kind of friendship. It´s a lovely way to have a relation with your best friend.