@Akari In real life, single people can do whatever they want, be with whoever they want, but it is their choice to be faithful when they are in a relationship, although it is also a duty. in Escalante's case, he is in love with Ines with all his heart, he doesn't even care about the other women. Being faithful to him isn't even a choice, it's natural, since he doesn't even think about the possibility.
Sueli