Two (of many) things that stun me about divorce are (A) the acceptance that many Protestants have for it despite it being one of the things that Jesus explicitly disapproved of and (B) the fact that adultery seems to no longer have any bearing in divorce settlements in many states with respect to support and child custody (which strikes me as insane).
If you don't think that Catholics have been infected as well, you need to look a little deeper.
Last stats I saw for adults who have been married
All protestants (including liberals) 34%
Catholics 28%
Evangelical protestants 26%