is what this wife and the the husband brother doing is ok for You ?

really i want to know cas i dont see any one mention that it bothers them seeing a faithful husband who was trying to do his best for his wife while she cheats behind him with his brother without any regret , and she did more worse !!!
i see people liked these relations in the comments
so i want You is this ok and quite common thing in the western society these days ?
and do You people get excited and love these relations ?
i know that religion had gone there so is morals means some thing in west ?
to me it looks very unmoral and very low could not have any sympathy with them
so any one is annoyed with this relation or You all love it so much as i see