When she found out her blue eyed boy had kissed someone when I was pregnant her response was "sometimes it's better they don't know".
Is that not essentially saying it's fine to kiss people and cheat on your pregnant girlfriend (kissing is definitely cheating to me, I know others disagree) as long as they don't find out? 
Do you agree with this?
I think it's basically her saying it's fine, not a problem he just shouldn't have told me!