Go back and reread the dev notes where he states he is trying to clear things up due to misunderstandings. It wasn't always there. He meant faithful in her heart not mind, but it doesn't matter if SHE thinks she is faithful, it's about the MC and what he thinks. People seem to forget that. So far there has been nothing other than her constantly having to remind herself she loves Alan to even show she cares, she gets mad and blames him even when she screws up, she pushes him away and brings Leon closer, which shows she cares more for Leon than Alan. At this point you kinda wonder why she even cares if Alan gets killed by X other than she won't have anyone to use to get what she needs to proceed or blame everything on. For someone who wants a save the marriage ending he sure doesn't give you alot of reason to save it.
Edit- not trying to get into wars just discussing things with what seems to be one of the more reasonable ones here. It's more of a choose your ending story than a game tbf. Either way as I and others have stated he had a chance to make a great non typical netorare game/story but instead went down the usual path making a run of the mill crapshow.