The word friendship is defined as the condition of sharing a friendly relationship. Also, it is the feeling and behaviour that exists between friends.
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.