People who pretend as schizophrenia

Do you believe a schizophrenia to say this ?

I am a schizophrenia. and I'm emotionally dead , Its been 5 years since I was diagnosed. I wounder if I would be in love someday , I can't cry in hard times , How could I react if I just didn't crush on anyone

yet ,

Please tell me , Can I do something about it :(

I was sad to hear him. But,

I don't know if he really Sz or just pretending? He may be right, but I've heard of people who pretend Sz.

In medicine, it’s called “malingering” if a patient is trying to deceive someone by faking, feigning or exaggerating symptoms.

Doctors try to discover fakers the same way that people good at detecting lies discover liars. They look for inconsistencies, or things that don’t quite match.

For instance, if a supposed schizophrenic can tell you clearly and without confusion that they’re extremely confused, their actions don’t correspond with what they are saying. A very confused person can’t clearly say how confused they are.

Or, if they act mentally disorganized while talking with a psychiatrist, yet later they can play chess with another patient, something doesn’t match.

It’s considered an advanced skill to detect a malingering schizophrenic, because a psychiatrist must know in detail the difference between real and fake psychotic symptoms.

So how do doctors catch the fakers?

I've read the article : DECEPTOLOGY

A malingerer is like an beginning actor who’s overacting. A beginning actor may try to play a drunk person by slurring every word and swaying and falling down, but an experienced actor knows what a drunk is like, and plays the drunk as someone who is drunk, but is trying to act normal.

Many people who try to fake a mental illness try to “play crazy.”

A faker will try to make their illness front and center, and make their psychosis the first thing they want to discuss, while a real patient will be reluctant to explain their symptoms.

so, what motive someone to do "malingering"?