[ To know someone but not really know them...Marianne can kind of understand that distance, in the sense that she had trouble opening up to her classmates despite the many years she knew them. ]

I guess if someone never talked much about themselves, it would be hard to get to truly know them.

[ Among her class, there were those who were an open book and those who kept their thoughts closer to their chest. The man on this gentleman's mind might be the latter. ]

I think being open about yourself can be kind of frightening.