In a relationship, many things are said when really another thing had to be understood by it. There's a lot of reading between the lines when knowing a person. And for the sake of knowing them. If you know someone, then you are supposed to know what they really mean when they say okay or fine. But many times it's not that way and it gets tiring to always have to know what there is in the other person's mind. It's not that simple to just know.