Truly Theirs begins in the aftermath, as Nadyia, Liam, and Noah work through their emotional scars, balance the weight of what they’ve survived, and slowly begin to rebuild their home life. Therapy, reconnection, and everyday healing become the quiet battles they must win. Alongside Ethan’s recovery, they face court proceedings, confront Michael one last time, and begin to see not just survival — but real peace — on the horizon.

The story begins eight years prior, detailing a 20th birthday party where Nadyia meets Michael. Their relationship develops quickly, leading to intimacy and later, marriage. Fast forward to five months before Chapter 1, Michael leaves Nadyia, revealing an affair and abandoning her during her pregnancy. Nadyia is left to face single parenthood. Chapters 1-4 detail Nadyia's efforts to cope with this change. She receives support from her best friends, Liam and Noah, twins who are always there for her. They help her prepare for the baby, both physically and emotionally. There are hints of romantic tension, especially between Nadyia and Liam and Noah. Nadyia also manages her photography studio, dealing with clients and staff while navigating her personal life. Chapter 20 skips to the future, showing Nadyia as a mother to her son, Ethan. She balances work and motherhood, receiving visits from Liam and Noah. The dynamic between them remains close, suggesting ongoing romantic potential. The story includes flashbacks and focuses on Nadyia trying to navigate her life as a single parent while also facing challenges. There is a scene where both Liam and Noah are in the shower with Nadyia. The book overall explores themes of love, loss, friendship, and the challenges of becoming a single parent.