Revenge of the Resilient Girl for the 70s

As the sound of thunder heralded the beginning of spring, Summer experienced an unexpected revelation: she was a devoted supporting character in a male protagonist-focused retro novel. Throughout her life, she had made countless sacrifices for the male lead. When he needed love, she handed over her life-changing opportunities to the female lead he adored. When he needed a stable family, she provided her assets and married him. When he needed a career boost, she sold her family’s courtyard house and small restaurant, investing all her wealth into his startup. Even when his career flourished, she stayed home, taking care of his parents and raising the illegitimate child the female lead sent over.

Summer: \"??? This is beyond absurd. Whoever wants to be this pitiful supporting character can be, but it won’t be me!\"

Why should she waste her wealth and talents on someone else’s dreams?