Chandler is known for his sarcastic sense of humor. He often mocks his best friend Joey for the latter's stupidity. Chandler is often depicted as being somewhat of a hapless individual, suffering a lot of bad luck while struggling through life and occasionally struggling with an on-and-off smoking addiction. However, he eventually falls in deep mutual love with Monica and proposes to her at the close of season six, with the two of them marrying at the close of season seven. At the end of series, he and Monica adopt twins, whom they name Jack and Erica.