I have just finally finished my first playthrough. There'll be no happily ever after for Wyll and my character, unfortunately, but I could have done with a bit more reaction from Wyll in the endgame.
Spoilers for the ending as well as Wyll romance below:
My character ended up reluctantly turning into a mindflayer and then killing herself. Wyll did give an inspiring, heroic speech when she spoke to him after the transformation, but to be honest she wasn't really in the mood for it. Something a bit more personal would have felt more appropriate. And he showed more reaction in the epilogue when poor Karlach went up in flames than he had when his alleged love had stabbed herself just beforehand.
I reckon she did the right thing by knocking back his proposal!
