What very significant event occurs in Minerva’s life shortly after the truth about Trujillo is revealed to her? How does one event relate to the other?

A couple of weeks later, Sinita reveals the secret during the night while Minerva lies beside her in bed. Trujillo destroyed her family, killing her uncles, her father, and her brother. Minerva considers, for the first time, that Trujillo is not the saint he makes himself out to be, and she feels as if she is going to throw up. When she wakes up the next morning, she realizes that she has begun menstruating: "my complications had started." Minerva begins to see Trujillo and her world through a more critical lens. This proves both complicated and dangerous for all the sisters.