Well I have not been cheated by girls (yet). But I have been betrayed by family, friends and some people I tried to help. Reality sucks sometimes. Trying to help others is worst than sticking to a "I do not care" attitude.
Satan said:
"You are for ever angry, all you care about is intelligence, but I repeat again that I would give away all this superstellar life, all the ranks and honours, simply to be transformed into the soul of a merchant's wife weighing eighteen stone and set candles at God's shrine."