Everyone, no matter who you are, judges. You may say you don't, but trust me, you judge. Based on what profession you want, what your favorite show is, favorite restaurants, etc. We all judge. Based on relationships, many people judge via looks. If the person is obese, more often then not, they'll be judged as "if they can't take care of themselves, what are the odds they'll take care of me?"
Don't mean to offend anyone, but that's the truth. Rather than look for someone based on looks, try looking for personality.