I don't think your personal life has anything to do with your professional life. They are separate things. Whatever is happening at home shouldn't be carried to work. Everyone has his/her own journey. Some revel in the fact that they derive that from personal contentment, and others draw it from extreme sorrow.
It's 5 P.M. at the office. Working fast, you've finished your tasks for the day and want to go home. But none of your colleagues have left yet, so you stay another hour or two, surfing the Web and reading your e-mails again, so you don't come off as a slacker. It's an unfortunate reality that efficiency often goes unrewarded in the workplace.