I am a very interesting person.

Some people think I am a very cheerful person, some think I am calm, some know I am very angry or bad-tempered, some love me, some hate me! Some people think I am very sociable, while others think I have too much ego.

But no one has ever understood me like I do! This is very regrettable to me!

At the end of the day, I add up and subtract and find that I am very lonely. ?