Ross and Mona took pictures of themselves at the Rockefeller Center and now Mona wants to send the picture as a Holiday card to friends. Ross freaks out at the thought of them sending out Holiday cards together because they've only been dating a couple of months. Ross tries to have a conversation about their relationship and says all the wrong things and ends up giving Mona a key to his apartment. Chandler has to tell his boss that he split up with Monica in order to prevent that Monica has to have dinner with Chandler and his boss. Written by
Did You Know?
Monica tells Chandler she doesn't want to go out to dinner with Doug because of the way he acted at their engagement party. In season 7, the episode The One with Pheobe's Cookies, Chandler tells Pheobe she doesn't have to get them an engagement gift because they weren't going to have an engagement party. See more
Ross insists to Monica and Phoebe that he gave Mona "the only key" to his apartment. In previous stories, Monica and Rachel would routinely go over to Ross's place in his absence to borrow cooking ingredients (that is also how they accidentally deleted a phone message from his ex-wife Emily). Phoebe also sometimes massaged her clients at Ross's place while he was at work. See more
References It's a Wonderful Life