it's OK. But where are the adventures from the life of Tony and Anne? It means, that we may lay down as a principle, that there is no room for serious feelings and intentions towards casual acquaintances, in an open marriage.
I think there is absolutelly no room for love toward others in their specific type of open marriage bc they do this for sex and their sex life only, which in their case is not connected with romantic love
They know that their love is invincible after 5+ years of marriage
they decided (after 5 years of marriage in which they were faithful)... on open marriage to experience the pleasure of SEX Their open marriage is not related for the lack of each other love
Of course there is room for love for a foreign partner, but concealing it is tantamount to cheating, and it also entails temporary or permanent separation from your spouse...
I understand that for many of us (including me) it is difficult to understand ...
And if they were a newly married couple you would be right... because if a marriage that starts becomes an open marriage immediately it is obvious that in this case there would be no love between them!
in the specific case of Tony and Anne they chose together to satisfy ka desire for sex (ONLY SEX) by choosing after 5 years of love + sex to open their relationship
only on the side of sex...
This of course is connected to a certain philosophy that states that love and sex are two separate things!
Love is a feeling ...
and sex is a physiological need (this includes not only humans) sex also serves proper mental health
in the animal world allmost all of them have sex just to reproduce which is genetically physiological
now I am not saying I agree with this philosophy and I know from experience that separating sex from love for us humans is virtually impossible
But I think Tony and Anne are trying to experiment in their open marriage by separating the pleasure of sex from their feelings of love and affection for each other--they still love each other romantically but do not want to connect sex to romance.
They are basically using sexual partners only for their physical pleasure....
....
In this sense they are selfish...they use others to get pleasure and continue to love each other sentimentally while they get off on telling each other about the many times they have had sex...
At the end the two of them know or are convinced that their romantic love can never end just because they have sex with strangers (specially this is what the MC think and i'm not sure Anne will be able to accept this for ever)
Actually sex for both of them is not connected with love (although for many of us this is hard to accept)