How Can Someone Be So Conniving?

I have suddenly become the center of your vindictiveness, for some reasons you just don’t like to be happy and seeing others happy become a tragedy for you. We have to be very careful with our daily conversation, so much so that we choose to keep quiet all the time. This is because whatever you heard you will combine them with your own issues and start exacerbating tension.

It seems that happy moment is just like a pacifier to you, a drama that you play to get the attention that you are craving for while your cyber world is not functional. How can someone be so conniving? I am baffled.