It just seems like as a couple these two characters had more passion and chemistry before they tied the knot than after. Much like real life, once the vows were said, the sparks between them stopped flying. Before the wedding, in my opinion at least, the relationship between Chandler and Monica fueled the emotional aspect of the show. At times since the wedding, Monica's character has been unbelievably bitchy, while Chandler has been largely uninteresting. It's like these two were better off as an unmarried couple. Marriage has been mundane.
Sure, the writers do their best to convey the image of Monica as "the coolest wife ever"; e.g., she hires Chandler strippers, she gives him lap dances, she gets him porn on Valentine's Day. But the chemistry between the two just isn't the same as it was before the nuptials, regardless of how many extraordinary wifely duties Monica performs.
Before they said "I do," there was almost an unspoken bond between the two that manifested itself in all their scenes. Now, the sense I get from their relationship is one of obligation rather than infatuation.
Does anyone else notice it? Maybe off-camera relations between Perry and Cox have soured to the point where its become noticeable in their acting? Or maybe they are both such skilled actors that they are intentionally altering their performances to reflect the realities of marriage? Or have my own pessimistic views of marriage just superimposed themselves atop my enjoyment of the Chandler/Monica relationship?
Dan