I don't understand why people like that game, it's a chore.
Maybe if it was largely automated and my role was to merely influence the narrative taking place, I might enjoy that, manipulating their agency to my own designs, basically take away all the controls that you do have and replace them with the controls that you don't, e.g. You can't tell them where to go or what to do, they do all that by themselves, but you can make two (or just one) of them fall in love, now they won't act on it immediately but they'll know, you'll know and if they're a brother & sister they won't want anyone else to know or even each other to know, so you just sit back and watch the drama unfold as they're drawn to each other yet desperately keeping the secret to themselves.
I think the point of the game would be to play with all their emotions until the previously happy loving family decide to kill each other.
This is partly why I'm an atheist btw.