Victim mentality
Acquired personality trait in which a person tends to consider oneself as a victim of the negative actions of others, and to behave as if this were the case in the face of contrary evidence of such circumstances
Victim mentality is a psychological concept referring to a mindset in which a person, or group of people, tends to recognize or consider themselves a victim of the negative actions of others. In some cases, those with a victim mentality have in fact been the victim of wrongdoing by others or have otherwise suffered misfortune through no fault of their own. Wikipedia