Does true friend exist?

Very often we might hear people saying that it is a very fortunate thing if you can ever get ONE best friend in your lifetime. How far do you agree with it?

I remembered having a lots of good friends when I was a small kid. I begin to realize that my friends are getting lesser as I grew up. It becomes even clearer reaching the age of 20+. Unless when I was needed, I have almost nil friend to be with. Does the problem lies with me? Saying I am not a very socialize person? A very boring person? I don't know.

Throughout the years, I did make one or two good friends in each season. However, the friendship will always end when we reached the closest relationship (just one step close to being best friend) for some funny reasons. My 1st good friend quarrel with me because of toilet-sharing issue when we lived together in University days. We are paying for the same rate of room rental, he locked the toilet almost every morning inside his room. The war began when I sounded him. My 2nd good friend left me because the girl he liked rejected him using me as a fake excuse. Believing her, he blamed me.

Since then, I didn't make any more good friends.