Passion, for starters! Angry sex tends to be the kind of throw-down, need-you-right-now sex you read about in bodice-ripping romance novels or see in rom-coms. It can be fiery, exciting, and the ultimate tension release. Read on to learn more about why angry sex happens, how to spice things up, and when to reconsider. Why does it happen? To learn more, we spoke to Dr.