Concerned only with oneself
A self-centered attitude makes it difficult to be humble and help meet others' needs.
He was too self-centered to realize that his friends were upset with him.
The self-centered man almost never admitted that he was wrong or made mistakes.
Because she was so self-centered, she didn't even realize that the only person benefitting from the changes was herself.
Sure, there are some self-centered actors and actresses that can't stay committed to one person whether they're dating or married, but those types aren't exclusive to the Hollywood scene.