I love that Laios and Marcille are both willing to immediately go off the legal/moral deep end for Falin, no questions asked. Laios doesn't even question Marcille's devotion when he asks her to use black magic, he knows she loves Falin too.
And the best part? That almost sinister level of devotion is returned in both of their directions. (Also, this is just a great Falin image)
"What if I took your hand in mine and told you I'd hurt others to guarantee your safety? And we were both girls?"