Direct answer
Objectives follow journal display order. Some depend on your choices; follow the active objective in the game.
Result
Geralt and Keira's journey to the elven mage's lair had forged a tight bond between them, the kind harrowing life-or-death experiences forge between soldiers at war or students during exam week. And so when it was all over Keira invited Geralt to stop by her hut sometime, in a way that suggested she did not mean for an afternoon of tea and crumpets.