Please tell me what is Autism sickness and how's the reaction of it?!

I'm cambodian girl from south east asia........recently, there is some white guy flirting me and I begin to notice that he has abit of strange behavior which I do not sure is he okay.?........well, as I'm asian and I do not get use to the caucasian people much........I just moved to europe not reach half year and I couldn't tell the different between the autism caucasian guy and normal caucasian guy.?...........but I observe that this caucasian guy who like to flirting me has the strange kind of behavior and I do not sure if he having some kind of syndome or problem in him.? well, his face looks almost normal but he has not much emotional mood, for example, the door is already opening.........he seen but still he put the keycard into it.? or could sit among the noicy gathering of childrens that screaming around his ears and he didn't feel hesitate or get nerve............he also lack of humor, he seems to get very difficult when I telling him some kind of story and asking him the openion.? but he seems to not understand or answer the thing that I do not think normal humans would have such a idea like that...........he also could remember only the important for example his work etc..........but the silly or cosy conversation he seems to not understand...........when we were in the car of my relatives into the countryside one time, the car was about to cash into the trees, all of the car's window were explored, all people in the cars scream except him.?...........after everyone got out of the car we all were crying but his guy didn't.? and has no any emotion appeared on his face..............also, this guy divourced 3 times.

what do you think of him.? is he normal or sounded like he has some kind of sickness.?Health Question & Answer

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