How does Olivia Svenson enter Angier's life?

Olivia Svenson enters Angier's life during his American tour, in Boston. Angier says she advanced on him, and her accepted her offer. She then joined the party and became his assistant. In the journal entry, Angier is extremely depressed because he has left his wife, Julia, and his children for Olivia. Cutter was also unhappy with the addition of Olivia, and though he completed the tour, he left Angier's employment on his return to London.