"Addiction is a biopsychosocial disorder characterized by compulsive engagement in rewarding stimuli despite adverse consequences."
"Despite adverse consequences" is a key component of addiction. For instance, many people can consume alcohol fairly regularly without the alcohol causing trouble for them. But if the alcohol starts to get in the way of work or disrupt your family life, that is a textbook warning sign of alcoholism.
If her compulsive use of facebook is getting in the way of things she wanted to do instead, that sounds an awful lot like addiction.
"Despite adverse consequences" is a key component of addiction. For instance, many people can consume alcohol fairly regularly without the alcohol causing trouble for them. But if the alcohol starts to get in the way of work or disrupt your family life, that is a textbook warning sign of alcoholism.
If her compulsive use of facebook is getting in the way of things she wanted to do instead, that sounds an awful lot like addiction.