If you meet two people who feel gloomy and negative in one day, does it mean that the same kind is attracted to each other?

This has nothing to do with the attraction of the same kind. Feeling that I have met two people who feel gloomy and negative in one day can only show that I am a gloomy and negative person and give others a bad feeling.

Just say to others: hello! People will respond to hello! Only by saying: I like you will others respond to you. I like you.

Like them, your inner thoughts are full of malice towards strangers. If you don't like them, scold others. Originally, a stranger who had no grievances and no enemies assumed a hostile posture. This is psychological gloom.