I think it does, even if the physical circumstances are different.
As to emotional intimacy, we live in the age of email, free long distance and unlimited any-time minutes, and cheap flights.
To put it simply, "not acting married before you're married," gets exponentially more difficult the longer a pre-marital relationship persists.
Certainly, as God's people, we don't want to live in fear and have our lives be primarily defined by avoiding temptation rather than positively seeking after Christ. Still, where particular known areas of temptation exist, it's not living in fear to be deliberate about taking the wiser course.
Let me try to deal very briefly with the most popular responses I get to this argument — especially from college students.
It's still really easy to "act married" emotionally, even in a long-distance relationship.
As to physical intimacy, many long-distance couples have told me that because they are not physically close to one another as often, they actually experience Um, no. Be deliberate about avoiding "marital" levels of intimacy.
In that context, living with the desires I've just described, how likely do you think it is that over the course of two or three or four years — some couples date over most of their college years — you will be able to maintain enough emotional discipline and distance to avoid acting emotionally and relationally "married"?