Can "missing" really become a disease?

Missing can really become a disease, which is what everyone calls acacia.

There are several common types of acacia:

The first kind of lovesickness is one-way, namely unrequited love. For example, You Sanjie in A Dream of Red Mansions, when Jia Lian forced her to get married, in desperation, she said that the person she loved was Liu Xianglian. But because she never confessed to each other, the other party had no chance to get close to her and get to know her. Finally, Liu Xianglian only based on "Jia Fu is clean except for the two stone lions in front of the door!" Rumors resolutely rejected her pure love, forcing her to commit suicide, while Liu Xianglian ran away from home because of remorse.

The second kind of lovesickness is two-way, but if you are paranoid, it will also cause harm to both sides. Liang Zhu's love story belongs to this kind. Liang Zhu and his wife fell in love, but they were opposed by Zhu Yingtai's parents. Liang Shanbo suffered from psychosomatic diseases because he couldn't get love, and finally died of depression. Zhu Yingtai finally committed suicide. The third kind of lovesickness, on the other hand, is actually a mental illness. Patients often believe that a certain opposite sex has fallen in love with him or her, although they may not say a word.

So missing will become a disease.