Thanks for the responses.
Coming from a western country i find these restrictions difficult.
There are many shades of grey, a whole spectrum of what might occur outside marriage. From just spending time together at the park or shopping center, spending time together within an accomodation, staying overnight at an accomodation. Again there is whole spectrum of what might occur with regard sexual activity.
It is so frustrating that it is difficult to know exactly what is permissable.
To me all that seems clear is if you are married you are fine. If you are not married where you stand is largely unclear. You may be subject to assumptions and inferences from the authorities which may or may not be correct, but certainly carry real consequences.