Some very gifted people develop problems with drugs and alcohol. Ben Affleck had problems and it ruined his marriage and his wife did and still loves him but just could not stay married to him. Also Brad Pitt had alcohol and drug problems and that ended his relationship. Robin Williams had addiction problems that affected his relationships. Spencer Tracy was an alcoholic who often drank until he passed out (he is of an older generation but was a very gifted actor). There are lots of things that are kept secret and often we think people are something they are not, we tend to buy into the "image" presented when there are things about different individuals that are far from what their image is showing.