In every scene the character should suffer more intensely than the scene before until he can't stand it anymore and has to do something. These five steps should help you identify the dead and breathe life into them. Most of these problems have to do with lack of character motivation because the character has no life. If they have no life, don't care about anything, then they can't suffer. But suffering is only one emotion to work with.
Lovers fall more deeply in love, or fight the feeling, until one decides to do something about it.
He chases her and part two begins. An athlete may reject hard workouts until he goes down in bitter defeat. He decides to try harder - part two begins and he finds the obstacles to success are just beginning. A cop may find compelling reasons to become more and more absorbed in a case until he realizes it's an obsession he can't give up and part two begins. A woman discovers she loves criminal law, but each day finds it more difficult to get into law school until it seems only an elusive dream.