Her desperation to be "chosen" by Nate leads to a complete psychological breakdown, including her famous as she meticulously crafts her appearance to gain his attention. Season 3: Post-Time Jump and Engagement Following a five-year jump, Cassie is now engaged to Nate.

The storyline culminates in a traumatic pregnancy and her decision to have an abortion, which marks a turning point in her mental stability.

Their dynamic is strained by McKay's own insecurities and his judgment of Cassie’s sexual past.