O_O
Six... hundred...
*falls unconscious*Oloth consume me... they definitely need to address the trigger for this scene to just play upon the first kiss of ACT III instead, this is absolutely nuts. Actual in-game 'romance lottery' just to get a tiny piece of Minthara's content.
On top of it being just very rare and random, also make sure you're not using a race that has proficiency in saving throws.
Have not played yet since introduction of patch 7 myself yet but I had it triggered only once prior to it and seemingly out of blue when least expected and that was when I used a wood elf.
Oh am good on the race part as I triggered it in Patch #6 as a Drow, but this patch is just brutal. 150 consecutive kisses, not counting several dozen throughout the entirety of ACT III whenever I approached her, nothing.
Really wanted to have it before finishing the playthrough with her, but meh... gave up in the end. It's just insane, locking away romance content behind such extreme RNG.