Arrogant People

I just don't understand why people have to so arrogant to the point where their arrogance gets to their head and they start getting darn right mean! I just recently met this guy who one of my roommates was thinking about dating and he wasn't even nice for a while, not even long enough to get to know my personality. After like three or four minutes he was making gay jokes and fat jokes. Now being who i am those things don't offend me, but he didn't know that. So i get to talkin to him and he happens to be from a town where i know a lot of people. So we're talkin and he asked me who i knew so i named a few people and i named one person and he asked me what i thought of that person. I'm a very honest person and the person he stopped me at i really didn't like so when he asked me what i thought i told him...this happened to be one of his best friends but you know what because he was an asswhole to be right off the get go i didn't care and wasn't sugar coating anything behind my reasoning.....it kinda made him mad but i didn't care because he didn't treat me with respect to begin with so i felt like i didn't have to give him any respect in return. This my genral view on most arrogant people. Most arrogant people don't have any reason to be arrogant but they are. Any ways thats all ttyl