In the promos for the upcoming Monica/Chandler wedding, it says "an event that has been 7 years in the making." So does this mean that ever since the show started, the writers had the idea of Monica and Chandler being a couple and getting married on the backburner?
I guess that would make sense since they got together right when the whole Ross/Rachel thing was dying down (aside from Rachel running to London to try to stop the wedding, and Ross saying "Rachel" at his wedding, but nothing really happened between the two of them after that, except of course when they were drunk and got married in Las Vegas :-).
So if the writers knew from day one that they'd be putting Monica and Chandler together, were there any clues given that implied they were a future couple? The only one I can think of is that old episode (I think it's from the first season) where Chandler tries making a pact with Monica that if neither of them were married by the time they're 40, that they'd get married.
Funny enough though, if you watch old episodes prior to the episode in London where they have sex for the first time, the two of them never really seemed to be good friends. They seemed more like acquaintances than friends. Perhaps the writers made it like that on purpose, since in a recent episode where they show a flashback of Monica and Chandler getting in bed together in London, Monica said something like "you know this will ruin our friendship" and Chandler replies "Ehh, we were never that good of friends anyway." I don't know, what do you guys all think?