Here's a question. Let's take two people who both label themselves Christian and both believe God created the world. Christian 1 believes that whatever created the world is God no matter when or how, (pantheism) and Christian 2 and believes that God created the world right before the wheel was invented, (Creationism).
Both are Christian, both try to follow the example of Jesus in the Bible. Do they share the same faith?
Here's another question:
Two people look through a window.
1) Objective truth A can be seen.
2) Person one looks through the window and interprets objective truth A as a dog.
3) Person two looks through the window and interprets objective truth A as a pig.
What is A? Can it be both a pig and a dog at the same time?
You're reiterating what "just a girl" was saying that I refuted. It's politics, it's not a real opinion. Treating the abstract as the concrete doesn't give it meaning. It's stuff religious people in USA say, in order to wallpaper over the problems they have about being:
1) Religiously bigoted.
2) Having freedom of religion.
It doesn't make sense. You can't change what's really there by interpreting it differently. It's 100% bollocks.
Let's take your example. Cheating on-line. Let's take a couple. Mr and Mrs. Mrs has a slave on-line and loves showing her naked body in a web-cam. Mrs defines cheating as having them put their penis inside of her. Mr defines cheating as showing your naked body to someone.
The interesting thing here is the truth, not the definition of what can be considered cheating.
The truth is that one thing happened, and only one thing. It's both true that Mrs was and wasn't cheating at the same time. So much is subjective. But her performed acts weren't open to interpretation. If Mr had seen her he would without hesitation put her in one category, while Mrs would without hesitation put her in the other.
PS! I recommend anybody who wants a course in applied epistemology without any fancy terminology to see the film "Lars and the real girl".
http://www.imdb.com/title/tt0805564/
It's absolutely hilarious, and very cleverly crafted.