If you talk to all 23 characters in the game, you know that some of them are already married (such as Madam Luz & Katherine), some of them are simply weird (such as Mark), some of them are not interested to pursue romance (such as Madam Zue) & some of them are infatuated with other character (such as Ned). That leaves a few available romanceable characters. To implement proper romance for these characters, we have to come out with a set of events that will lead to romance. This is quite challenging process.