Monica was a senior in high school at the time, and Chandler was Ross' freshman college roommate. Their relationship, however, had a bumpy start when Monica developed an infatuation on Chandler and overheard him refer to her as Ross' "fat sister." This offended Monica, who then ended their friendship. Years later, after both graduates from university and got jobs in California, they decided to give their romance another try. This time, though, Chandler didn't want to wait so he asked Monica to marry him. She said yes! They then spent their wedding night arguing about which one of them should drive back home. Finally, Monica won this battle of wits and pulled over to sleep in her car while Chandler returned home. Monica then realized she wasn't ready for marriage and broke up with Chandler. But despite this, they still love each other very much and are still good friends today. Here's how they explained their marriage at different times: Chandler: I married her because I thought she was beautiful and I wanted to marry her. Ross: If you were just dating my sister, you wouldn't be marrying her. You'd be dating her. Chandler: [about why he married Monica] It was right before my birthday and I wished on a star. A fat one.