Jealousy
Jealousy is an emotion experienced by one who perceives that another person is giving something that he/she wants (typically love, affection, attention) to a third party.
However
Wikipedia defines Jealousy as an emotion and typically refers to the negative thoughts and feelings of of insecurity, fear, and anxiety over an anticipated loss of something that the person values, such as a relationship, friendship, or love. Wiki also says that it is not to be confused with envy, but a combination of anger, sadness and disgust.
Most think of jealousy as a negative thought; a negative emotion, but a minority will think of it as motivation and derive pleasure or strength from it.
A powerful tool, really, and yet a double edge sword as well.
.][-Splattered my blood on
1:45 AM