My answer is No.
I don't think a lot of couples, or all of them, would be mutually comfortable with this.
I'm sure you all might have seen videos of some YouTubers doing something similar with their significant other for a day or two, and in the end, they were laughing and saying it wasn't enjoyable.
But 123 days, I highly doubt any relationships will remain intact afterward.
I don't know if it's supposed to be a relationship therapy option, but it's such a stupid idea.