The English word 'proportionate' has a few different senses: 1: exhibiting equivalence or correspondence among constituents of an entity or between different entities; 2: agreeing in amount, magnitude, or degree; 3: being in due proportion
it means they would not care if someone was as mean to you as mean as they were to you. sometimes it means they do and its just that they are too insecure to tell the truth and use childish anticks...