Nina was initially meant to be a "bad girl", but the writers rewrote the part for Goodrem, and the character became a "painfully shy schoolgirl" who gets a job in the Coffee Shop. The Age described Nina as the "quintessential girl next door". Goodrem described her character as "a quiet, unassuming type of girl", who did not think anything of her amazing gift. When Goodrem was asked if she was similar to Nina, she replied "I think I am in some ways and in some ways I'm not. Nina's very shy, I really like the character Nina but I think she'd probably walk out of a room and I'd probably chat all day I think that's probably the difference, she'd sneak out of a room and I'd stay!" The BBC agreed with Goodrem and said that Nina would not say "boo to a goose" and would flee if anyone looked her way.  In 2003, Nina's mother, Trixie (Wendy Stapleton), arrived in Erinsborough after Nina's father, Nick, ended their relationship. Nina was upset to learn about her parents split and went into denial. She believed that they would get back together. Trixie was a professional singer and, during a set at Lou's Place, started to lose confidence, so Nina helped her out and saved the night. Stapleton stated that Nina and Trixie's relationship was complicated, and there were issues between them. Nina saw Trixie as an embarrassment, but she helped her out because she saw how sad her mother was. Stapleton explained more about Nina's early life saying, "Nina's life has been almost a gypsy one - living out of a suitcase while her parents toured. She's learned to be independent from an early age, though Trixie idolises her." Nina retreated into books and her imagination instead of being worldly from the travelling she has done. Stapleton and Goodrem did not get a chance to explore their respective character's relationship much further, as Goodrem was diagnosed with Hodgkin's lymphoma three weeks into the storyline. Scripts were changed so Nina was not directly involved and she was only mentioned by other characters.  When she returned in 2004, Nina was no longer shy and vulnerable. She had taken control of her life and became more assured. Goodrem welcomed her character's development and said Nina came back strong and confident. She also said: "I think she had to grow up. If she didn't come back a little bit older and wiser, then she wouldn't have learnt and grown from what's gone on in the year that she's been missing."

Answer this question "What displayed her denial?" by extracting the answer from the text above.
She believed that they would get back together.