Three things you shouldn't expect from other people.

Don't expect people to respect you if you don't respect yourself. It is important to be kind to others, but it is equally important to be kind to yourself. Don't expect a person to suddenly change. A common misconception is that if you care deeply about someone, they will eventually stop disappointing you and change. No, it won't change. Don't expect everyone to like you. It doesn't matter how well you treat other people, there will always be at least one negative person who will criticize you. Smile, ignore and move on.