"They work in silence to build a wall of obligations that we should have towards them. This wall ends up making you feel pressurized and forced to continue acting this way for them, although you wonder, at the back of your mind, how did it all come to this point.
A person with this type of personality acts as if he or she were really nice with others, but in fact they are mixing consideration with the need to be important to you.
When they do so, they do things for others that no one asked or wanted to be done, but this way, they ensure a link with the "favoured." Doing this "favour " to you, they expect you to give them something in return .