marriage is a relationship be it arranged or a " love" Marriage.
Any ralationship needs three things to make it work
Communication
compatiblity
and
concideration
All the other stuff the "Love", trust,etc comes when these three things combine and are working together. If you have a breakdown in any of these three then the relationship begins to crumble.
I believe that "affairs", I mean true affairs, not "one off" encounters, begin well before the bedroom. these true affairs occur because one of those three things are not working in the original relationship.
Arranged marriages, as has been said earlier, are a culture thing. If it works for them then that's fine by me, but they (arranged marriages) still require those three elements to have any chance of survival.


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Nobody cares that you can't dance well. Just get up and dance!