Immatured

Sometimes, childish people who tries to be matured or thoughtful, makes me feels sick.

They thought that having this kind of plannings or thoughts makes them matured but actually, it makes them more childish.

And, the most annoying part is, when they try to show you how great they are, but in fact, it's just exposing their naive side. 

I tried to let them understand but it seems like pouring water to the ocean. Makes no difference.

They never realize how grateful they should be.