Direct answer
Objectives follow journal display order. Some depend on your choices; follow the active objective in the game.
Result
When it comes to matters of the heart, my friend the witcher was never one of the most decisive men in the world. That is why, when he unexpectedly found both Triss and Yennefer back in his life, he couldn't unravel the conundrum of which to choose and... led both to believe they were his one and only. Usually such stupidity ends in bitter words and tossed cutlery - but not this time. When the three of them were alone, the sorceresses revealed to Geralt that they knew what he had done and... were fine it. They had concluded that they all cared about each other deeply, and fighting their instincts would defy nature's wishes. They had a special start planned for this new chapter in their lives - a romantic evening for just the three of them at the Kingfisher.