Girlfriend or boyfriend's nagging is sweet, because after talking and ranting, it always summarize in one way between the two, after then what you would hear is going to be beautiful laughing between them.
Advising the people in love is just like having a random thoughts, because he/she might even go ahead and tell your response to their partner, and they both began to see you like someone that do not need good for them.
Point them to a counselor always, if they come looking for your advice, to saved your breath for your own partner.
RE: MANIPULATION 101