Being taken for granted can be a compliment. It means that you've become a comfortable, trusted person in another person's life.
Source: In The Speaker's Electronic Reference Collection, AApex Software, 1994.
-- Joyce Brothers, (Oct 20 1928-2013), US psychologist, author; She is a syndicated columnist, radio, TV show hostess; wrote What Every Woman Ought to Know About Love and Marriage, 1984.