It is the use of any form of power that is imposed by one partner over the other to maintain control within the relationship. Anyone can choose to be abusive or not.
Lesbians are always equal in relationships.
It is not abuse, it is a relationship struggle. Two women in a relationship do not automatically guarantee equality. Relationship struggles are never equal if abuse is involved. Abuse occurs regardless of race, class, religion, age, political affiliation, lifestyle, or physical attributes. Lesbian violence is caused by drugs, alcohol, stress, childhood abuse.