Once upon a time, Monica got a roommate and television changed forever. With all Friends seasons in infinite syndication, it’s easy for die-hard fans to watch and re-watch the series, discovering new things with every binge. But have you ever wondered what was going on off camera? Thought the cast became best pals, was there any notable behind the scenes drama on the Friends set?While Friends was definitely light on on-set drama, especially compared to other hit shows like Grey’s Anatomy or Two and a Half Men, it still had its fair share of off-screen tension during its 10-year run. From one actor’s struggle with addiction to intense contract negotiations, this list gathers all the Friends on-set drama that has made its way to the Internet.