Don't criticize, condemn or complain
Criticism is futile because it puts a person on the defensive and usually makes him strive to justify himself. Criticism is dangerous, because it wounds a person's precious pride, hurts his sense of importance, and arouses resentment.
Instead of condemning people, let's try to understand them. Let's try to figure out why they do what they do. That's a lot more profitable and intriguing than criticism; and it breeds sympathy, tolerance and kindness.
Cheating for guys
It is OK as long as the relationship ends the same night. It is also OK if it is done artfully, especially if it involves 2 girls (threesome). It is not OK to let her know. It is not OK if you're a girl - RULES ARE DIFFERENT FOR YOU.
PS - every girl is different and has different rules.