I'm not super religious but I was always taught that a sin is a sin. All of them are bad and unless it's one of the deadly sins, they're pretty much all equal. One is not worse than another.
I was also taught that it's not my place to judge others for their actions that may be sins. (I think that's God's job...right?) So I don't think people should judge you for your choice to have sex and you shouldn't judge others if divorce is right for them. I think both of these subjects are highly personal decisions. Further, I don't remember reading anything in the bible that allows and encourages Christians to judge others. I think that judging people is probably actually contrary to what the bible says. Just my two cents.
