Originally Posted by Sunflower

I don't think professors truly stay at Hogwarts for the majority of the year. Sure, they have to teach and take care of students, but there could be a rotating schedule of sorts so that some professors return home in the evening while others supervise the kids at school. I believe it's canon that there are multiple professors teaching each class, so there should be enough adults around to maintain the rotating schedule, not to mention dozens of prefects and ghosts who also help to patrol corridors. Homes are only a Floo away, and there are fireplaces in all professors' offices.

I'm getting off track buuut what I'm trying to say is that I think professors had a lot more time to invest in their personal lives than we know. For example, Minerva McGonagall lived in Hogsmeade with her husband while teaching at Hogwarts. She went to school every morning and returned home in the evenings. I think professors would be given the choice to live at Hogwarts or at home with their family.