Dr. Mark Greene: What are you thinking about, Doug?
Dr. Doug Ross: Carol... I'm in love with her. I mean, I used to think I knew what love was. I cared about a lot of women, I just don't think I've ever really been in love. I think about her all the time. I don't like it when I'm not with her, I don't want to be with anyone else. That's love, isn't it?
Dr. Mark Greene: Yeah... That's love.
