With 'Twilight ' you have these massive tomes that you have to condense. With 'Penoza ' we had an eight episode Dutch series that just for the pilot alone I condensed three episodes. So there's a lot of filling in and a ton of invention that has to happen to fill out eight episodes.
On both 'The Bachelor' and 'The Bachelorette ' it seems like proposing marriage is equivalent to saying 'Let's date.' Everyone knows those aren't the same things.