Practice Patience.

Some just can't live without the attention they get from people. They can't live without them getting the better of people in the silliest of ways, because that's what drives them. 

Hello there, I'm the Earthian.

No matter how good their lives are, the very thought that someone else is independently better than they are stops them from appreciating their own lives. You can't really help them stop it because it is a source of pleasure for them to give you displeasure. The more you ignore them, the severe gets their actions and at times, they get more painful than annoying. Now, if you're someone who's very sensitive and you get so outraged by their actions that you speak words that you wouldn't normally do, it's your day that will get ruined. They'll walk away once your mood gets ruined enough. Or they'll make it worse by spinning it on you, making you feel bad for what you've said rather than pay attention to what they've done. There is really one thing that you can do with these people, and that is practice patience. And maybe even improve your ignoring game. Might come in handy some day.

Love, peace.