Cassandra. [... It's not the cold, blunt attitude she had at the start of her service to Rapunzel. It's flat, but casual.] ... Right. The hair thing.

[Cassandra isn't one for beating around the bush, but with Rapunzel's last memories being so... fragile, she can at least gloss over the bit where Eugene fully died for a few minutes there.]

So Eugene cut your hair to free you, the two of you got out of the tower, and you were reunited with your parents. A few months after that, these... weird black rocks started popping up in Corona, starting where the Sundrop flower was when the guards found it. You touched one, and your hair grew back - sans healing.

[A pause, and then Cassandra shrugs.]

But hey, your hair was indestructible after it grew back, so. Good trade-off, I guess?