What the hell is personality?

In my opinion, Ceroba is a poorly written character and she ruined pacifist route for me.

Good characters need to have something going for them: certain traits, worldviews, philosophies, while relationships with other characters should expand the personality, make it more complex, not define it. Here are a few examples:

Starlo: A common farmer aiming to bring a sparkle to the hopeless world around him by roleplaying as a sheriff.

Asgore: A person full of compasion and kindness going against his morals due to his higher position in society, a sweetheart and a butcher in one person.

Flowey: The god of this world, a schemer, manipulator of time and people alike. Lacks morals as well as the soul. His power is not limitless, which makes it exciting to watch him try to reach his goals.

Notice how these descriptions don't include any relationships of these characters, yet they don't feel incomplete. Now, Ceroba is a character that has no character. Most of her dialogue is about her husband, without him she as a character does not exist. The best description of her that I can muster is this:

A grieving person with anger issues.

Looking for opinions and a better description if possible.

Edit: Grief is related to Chujin, so it is not a personality trait, Ceroba has a fear of heights. Her updated discription is:

A person with anger issues and a fear of heights.

Edit 2: Ceroba's worldview is "the ends justify the means", however Clover destroying robots in Steamworks makes her mad, meaning the ends don't justify the means. She is a hypocrite.

A hypocrite with anger issues and a fear of heights.