extract all values in column, excluding immediate duplicates only

I have a list of names in a column. they appear in duplicate groups but the groups can occur more than once. I need a way to list each name from the column in order but exclude immediate duplicates but not other instances of the same name later on. If that makes since. The list on the left would become the list on the right.

Me Me
Me You
Me Them
You Me
You You
You
Them
Them
Them
Me
Me
Me
You