Why is Ai Haihara not with Conan in Conan?

In "Detective Conan" that we have seen since childhood, we knew from the beginning whether it was Kudo Shinichi before the change or his body shrunk after being fed the drug APTX4869 by the man in black. Edogawa Conan, his only girlfriend is his childhood sweetheart Maori Ran. As for why after everything they went through, he didn't develop feelings for Haibara Ai, who accompanied him through the dark time and had some tacit understanding, or even simply Together? That's because she is Shirley!

Yes, when it comes to Haihara Ai, anyone who has watched the "Detective Conan" cartoon or comic book will know that she is the most important character in this drama. Although she looks like She is a victim who has the same experience as the young detective Kudo Shinichi, but it must be said that before she was given the drug APTX4869, she was the one who was spotted by the Men in Black organization because of her extraordinary IQ, and used Scientists trained in the United States with a large amount of money and resources, and their most important invention is the drug APTX4869...

This is also the case for a strange woman codenamed "Shirley" by the black organization. After her sister went west, Banran cut off contact with Black Clothes and was imprisoned by the organization. It was not until she took the drug APTX4869 alone in order to commit suicide that she was inadvertently taken in by Dr. Agasa, who was a good friend of Kudo Shinichi, and finally became... Haibara Ai is a cold and somewhat melancholy elementary school student. It is this kind of Haibara Ai who, after meeting Edogawa Conan, who was shrunk by the drug APTX4869 she invented, has the curiosity of a scientist on the one hand, and an appreciation for Conan on the other.

But what has to be said is that even so, Conan will not fall in love with Haihara Ai, and Haihara Ai will always turn back to Shirley. I believe that in the end, the person who can accompany Kudo Shinichi well throughout his life, besides Mao Lilan, is her pig-like father, Maori Kogoro-kun.

Haha~