Possible Clues:

• Study Italian poet, adopting woman as recipient of secrets
• Study poem rejected by poet, trusted friend
• Trusted female prisoner if backed by Italian poet
• Female I spotted in study, poet's lady friend
• Deceive female poet about one woman that holds secrets
• Female entrusted with secrets
• Intimate with Italian poem about Italian poet
• Trusted friend's name appearing in end of Act I, possibly
• Noticed fan becoming odd, someone getting close and personal?
• Intimate deception, fine one by poet