A view from my side.
I have no room in my life for bitter, petty and vindictive people. They chill the air in a room when they walk in with all their drama and their hatred. I can see the people around them sigh and roll their shoulders a bit when the Bitteroid comes to the table. Laughter and merriment turn into doom and gloom as those in the group find or make up excuses to leave.
The Bitteroid casts a gray cloak over my sunshine. Not happy unless all around them share in their misfortunes, the Bitteroid works to bring people down with stories of how, through no fault of their own, the Bitteroid has been mistreated or misunderstood. They weave a tapestry of sorry and woe, the victim of some injustice that only they see. They live in a dark, dank place. Musty and strewn with the cobwebs of their misery, they suck the life out of whomever is unfortunate enough to get caught up in their plight.
The Bitteroid cannot be saved, though many have tried it. You would think it would be a simple matter. Take them out, show them how to have fun. Get them out of their dungeon and into the bright light of life.
Unfortunately, the Bitteroid bring their darkness wherever they go. They can have fun for a while, but soon they can be found spreading their bitterness to any that will listen. After a short while, you can find them sitting alone at the party, sipping their drink, growing stronger in their bitterness because no one will talk to them. They feed upon themselves in a self cannibalism that consumes any sense of joy or happiness they may have experienced.
No, I have no room in my life for the Bitteroid.