I have not stayed at camp yet to get information about Astarion's "condition", and as I was wandering around, Lae'zel spoke to him about his Master and the poetry :X.

I just thought that this could be locked behind the story reveal, so that it's not spoiled for new players smile. I had not needed to camp because I hadn't fought anything, all I had done before having her have this conversation as use my Illithid power on the Bogrot welcoming party.