The girls you see in anime and manga are very pretty and nice sometimes, but sometimes they are like Asuka in Neon Genesis Evangelion. I think real girls are a bit more like that. Asuka is overbearing towards everyone around her because inside, she has a lot of pain. I think real girls and real people in general are like that. Any ugliness they are showing is really pain that they have to hide from. Instead of looking for a girl who is like the ones who seem to care only for what their boyfriends are feeling, you should try to see all the little cute things about real girls.
A girl who reads books and is cold to others might have had a boring life, and she can't accept other people because she thinks her books are more entertaining. A girl who is too afraid to speak her mind because her friends always put her opinion down. A girl who yells at everyone because she thinks it is the only way anyone will listen to her. In these girls you can see that they are hurting, and inside they are beautiful girls like the ones you read about.
In anime and manga we see people for who they truly are, but in real life you can't always tell. Even the worst person in the world has something beautiful in them. I think you have a beautiful sensitivity. You see beautiful worlds without pain and want to have such a world for yourself. If you can't see the little beautiful things inside our own world, though, you'll never have a happy life! All these manga and anime are based on this world you live in, the one outside of your apartment. You need to go see this world! Even if you just go to a park or beach at night when there are no people around, look at the beauty of the stars and all the living plants and animals! The world is gorgeous! Somewhere in that beautiful world, there is someone waiting for you, but if you don't ever leave your apartment, maybe they will never meet you! They will have a more sad life for not meeting you!
I hope you get to meet them, too. I gave up once, but I met my wonderful boyfriend, who is a jerk a lot, but who makes me the happiest real life girl in the world. I know you'll find someone too, so don't give up!! (^_^) Ganbatte~!