Why did i have to visit

Now i know i made the wrong decision. I should of stayed home. Maybe if i hadent come Mr. Darcy woud of never told me his feelings about me. I know i hurt him by saying no, even though he tries to act as if it were nothing. Now im confused. Why did he not want Jane to be with Mr. Bingley and know he wants to be with me, when he once said i was not an agreeable person.