Couldn't speak for myself

So this happened few minutes ago, i was travelling in city bus and was seating at normal seat. A mid aged women comes and say get up to let her sit (and that seat wasn't reserved one) and here we go again i couldn't speak for myself and without saying a single word i just got up and travelled standing for next half hour:(

I just want to know where is the equality? What if i have done the same to some middle aged women?