Mr. Player-Hater, there are several problems in your stance, which boil down to the fact that language is an imperfect way of communicating, and basing your expectations exclusively on spoken language will bring you little:

• what about if the girl does not know what she wants? or has no clear plans for you? Should she say "hi Mr. Player-Hater, i don't know if you're interesting at all for me, but how about chatting a bit? I'm bored anyways!". Even better: "Today I want to forget about my annoying boyfriend, so I take anything that comes, which happens to be you"?
• Often what people think they want is vastly different from what they actually need. If you force them to say things, they will stop something that would have a chance of becoming a long lasting relationship. "You're really not my prince charming, or even the best pick around, but I'll spend some time with you, for lack of a better option for now". Even better: "I'm ashamed of being with you, but somehow end up doing it for the moment." Why do you think some people resist so much saying "I love you" while at the same time going out together?
• few people can stomach the level of sincerity you are requiring: "You have a passable face, but god what an horrible hair cut and detached ears! Also, please stop with those terrible jokes and donkey laughter". Or "I don't give a shit about your favorite book, but I'm willing to listen because I'd like to spend some time with you". Some people are that sincere, but they require special partners who are able to stand them.