Backstreet From Parents Is Not A Relationship?

The answer here is not about "agree" or "disagree", but about whether it's a relationship or not. Of course it is still a relationship. No doubt about it, what in the world could make it the opposite? That is what we called with a commitment between 2 people to loving and caring each other. But how about the "backstreet" thing itself? Well, there must be some reasons why couples do that. Most common said is because we fortunately know our parents didn't like our candidate-girl/boyfriend when we introduced them. But then what else can we do, we expect that thing goes smoothly. After we reach at this situation, many have decided to do backstreet relationship. Because they afraid that, usually the girl's parents, will prevent their daughter to meet with her lover. There are a lot of such thing happened in teenage world nowadays.