Who is Martina Twain from Money: A Suicide Note and what is their importance? Money_(novel) English & Literature Martina Twain | Money: A Suicide Note

Martina Twain is a good friend of John Self's. Though he's been romantically interested in Martina for a long time, he's never acted on his feelings because she is a married woman. When Martina discovers her husband is cheating on her, she has a brief relationship with John. Their romance ends, however, when she finds him with the same woman her husband was seeing...... Selena Street.