I really felt the same as you. Compare to later chapters the first 3 where more 'honest' and couple related. Later it becomes more of a fuckfest for Anne like in other female lead games turning MC into a slut.
By no means I want to say that TAC is a bad game - I still enjoy it very much -, but I kinda miss the couple dynamic as seen in Chapter 1 to 3.
Specially for hotwifing, sharing, swinging it is important to be fully honest with your partner otherwise your marriage or relationship will end in the same way as it did for Rebecca Dreams from Rebeccasoffice.
TAC kinda reminds a lot of Rebecca and her husband and what they went through. In the end they got divorced and went separate ways.
Here is an old interview with Rebacca's ex-husband after they separated. He mentions a few things Rebecca did and reading what she did was kinda hot - honestly. But on the other hand it is sad too, that she left her husband out of the action.
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