B, if A is purely physical betrayal with zero
involvement of emotional betrayal. And I disagree with some of the
previous posts that this is impossible. TS has already posted one
example of an accidentally fuck
with a friend of her boyfriend, and another may be a rape incident
where the girl gets raped.
Maybe the poll should be simpler, like:
Which is worse?
A) Your wife being raped, or
B) Your wife making a cuckold of you, emotionally. 
PS:
I'm not saying that A is any better, btw.
