Bulma's quest for the Dragon Balls leads her to meet Goku, a naive but powerful young boy. Their unlikely friendship forms the foundation of the Dragon Ball saga and significantly shapes Bulma's character development.

Bulma begins a romantic relationship with Yamcha, a desert bandit initially motivated by her Dragon Balls. Their relationship is characterized by both affection and conflict, reflecting Bulma's strong personality and Yamcha's insecurity.

After several years, Bulma ends her relationship with Yamcha, citing his infidelity and inability to commit. This breakup marks a turning point for Bulma, leading her to seek a different kind of partner.

An extremely unlikely relationship begins. Although at first only physical, after Vegeta rescues her life, she has a child with him, changing him forever.

Bulma gives birth to Trunks, her son with Vegeta. Becoming a mother profoundly impacts Bulma, instilling in her a strong sense of responsibility and protectiveness. However, she makes Vegeta a better person, and eventually, they grow to love each other.

Bulma gives birth to her second child, Bulla (Bra). Now a seasoned mother, Bulma balances her scientific endeavors with raising her children and supporting her family.

Bulma and Vegeta's relationship evolves into a complex and loving one, despite Vegeta's stoicism and Saiyan pride. Their family dynamic provides a source of both humor and heartwarming moments in the series. Bulma is shown supporting Vegeta's training, while he slowly comes to depend on her emotionally.

Bulma's friendship with Goku remains a constant throughout the series. She provides him with resources, support, and understanding, while he offers her his unwavering loyalty and strength. Their bond is a testament to the power of unlikely friendships.