Not least because, as rumor has it, they make a lot of gorgeous chocolate in Switzerland.
That coupled with the cheese makes hikes and skiing perfect activities to balance it all out.
If on the other hand, it started with meeting in a club and going home together, that does not mean you are exclusive. The Swiss are, after all, the ones who are famous for making watches. That means most of them take punctuality pretty seriously.
If you start hanging out after that you might be a few weeks later though. So if you show up late, the guy you are dating will likely be offended.
And yet some aspects of the Swiss character may leave a foreigner puzzled.