Diablo – How to get the remaining follower conversations

According to the author of http://www.d3lexicon.com/, a complete list of all conversations is given here. The data is gathered from the internals of the Diablo III client.

You can filter the conversations by "Fol" for "Follower" at the beginning, then by "En" for "Enchantress", "Sc" for "Scoundrel", "Tp" for "Templar", and "All" for all of them.

Example "Fol Sc En Wrld 2" (talk between scoundrel and enchantress):

Scoundrel: However did you become so good at charming others?
Enchantress: I learned the charm spell long ago and spent many hours practicing it.
Scoundrel: That's not what I—never mind.

Example "Fol All Camp 02" (talk between all three followers):

Scoundrel: Kormac, anyone can tell that you are lonely. Let me help you find a woman.
Templar: I already told you: I have forsaken the pleasures of the flesh! How hard can that be for you to understand?
Scoundrel: There's no sin in merely talking to a lady, is there?
Enchantress: The way you talk, there is.

Example "Fol Player En Wrld 004" (talk between enchantress and player):

Enchantress: The templar is so strange around me at times.
Player: He's in love with you.
Enchantress: What?!
Player: You never noticed?
Enchantress: No!

I did a run through with a new character, noting when each of the conversations became available. This was compiled by listening to each conversation as soon as they became available. Some of these conversations are only available after having heard previous conversations and the specific dependencies are as of yet undetermined.

Adria stops talking to you after you start Heart of Sin in act III and by then any conversations not heard have certainly been missed.

Act II

• Adria and Cain: Available from the time after you complete the quest Unexpected Allies and before you accept the quest Betrayer of the Horadrim until you begin Act III.
• The Price of Victory: Available from the time after you complete the quest Unexpected Allies and before you accept the quest Betrayer of the Horadrim until you begin Act III.
• Leah's Birth: Available from the time after you complete the quest Unexpected Allies and before you accept the quest Betrayer of the Horadrim until you begin Act III.
• Motives: Available from the time after you complete the quest Unexpected Allies and before you accept the quest Betrayer of the Horadrim until you complete the quest The Black Soulstone.
• Adria's Capture: Available from the time after you complete the quest Unexpected Allies and before you accept the quest Betrayer of the Horadrim until you complete the quest The Black Soulstone.
• The Mad Wizard: Available after accepting the quest Betrayer of the Horadrim until you complete the quest The Black Soulstone.
  • Tyrael's Warning: Available after hearing the conversaton The Mad Wizard until you complete the quest The Black Soulstone.
• Your Daughter: Available from the time after you complete the quest Betrayer of the Horadrim and before you accept the quest Blood and Sand until you begin Act III.
• Belial and the Soulstone: Available from the time after you complete the quest Betrayer of the Horadrim and before you accept the quest Blood and Sand until you complete the quest The Black Soulstone.
• Magic: Available from the time after you complete the quest The Black Soulstone and before you accept the quest The Scouring of Caldeum until you begin Act III.
• Adria's Quest: Available from the time after you complete the quest The Black Soulstone and before you accept the quest The Scouring of Caldeum until you begin Act III.
• Ensnaring Belial: Available from the time after you complete the quest The Black Soulstone and before you accept the quest The Scouring of Caldeum until you begin Act III.

Act III

• Azmodan: Available from the time after you begin act III and before you accept the quest The Siege of Bastion's Keep until you accept the quest Heart of Sin.
• Suffering: Available after accepting the quest Turning the Tide until you accept the quest Machines of War.
• The War's End: Available after accepting the quest Machines of War and after hearing the conversation Suffering until you accept the quest Heart of Sin.