You are predictable:

Others consider you predictable as you are easily read, relating to your emotions and responses. They find your behaviour consistent and do not notice mood changes, for you are not one who changes with the wind. You are not double minded nor do you allow yourself to be shaken by environmental changes nor even by the behaviour of people around you. Others can trust you to be the same day after day. However, you may find yourself to be emotionally inhibited and passive.