I'm not completely sure about the planned endings, of how the couple could end up, all i know is there are multiple endings planned. Under the love route the wife will be sharing the husband with all the different girls in the game sooner or later, so it is safe to assume a lot of FFM threesomes would be happening.
Here is a bit of a spoiler if you want to know what could come out of the love route in the future.
https://f95zone.to/threads/because-i-love-her-love-update-steam-the-typist.16569/post-15056115
Thanks for that link.
I'm more curious if a true throuple/poly situation will happen with Claire/Zoey/MC without Zoey trying to take Claire away or vice versa. Currently they either take the NTR path and plan to cut the MC out, or they still seem focused on each other and not the MC so much if their 'love' route is chosen. The fact that *anything* that leads to sex in that scene is under the NTR option says a lot about the apparent focus of those two together, which is unfortunate.
If the non-NTR (what we'd assume the love route) is chosen they basically don't do anything and then all think they missed some opportunity. But if the option for them to actually be together is chosen, it's very much presented as if both women will end up sneaking behind the MC with each other, which is true NTR when it doesn't have to be. Basically the Dev only seems to have one version of this scene, or else the MC and by extension the couple, just don't actually make the additional shift to being a true poly situation.
If that was meant to be an actual start to the two women getting 'closer' on the way to being a throuple, it needs revision in the writing and how the entire scene plays out since it's either major NTR leaning, seems to imply the women will be the couple more than the MC if the 'love option' is chosen, or never really happens.
I know the game originally was NTR focused, but if the dev is actually trying to make this version not NTR focused and still have believable options, they need to make sure scenes like this support that new path an the possible throuple and not the original one.