Generally speaking, I should be very self-confident and believe everyone can become nice if I make great efforts, in fact it is very hard, so far I can't find anyone that was changed, I can just change myself, and need to accept this fact, so the next question is what should I do base on this fact?

Someone has many things in common with me, it is easy to communicate with each other, but it is tough to the other person, I should take it easy, after all I should make me happy