Life itself is boring, complicated, and gives us a headache. Of course, there is a little truth to this. So the economics and the nature of the medium create a distorting mirror. Of the entire range of human experience, Hollywood only knows how to portray two aspects, beginnings and exceptions . Hollywood finds middles boring, and has no idea how to do endings.
All movie romances, whether presented as comedies or dramas, are about beginnings.
Many are capable of the first who haven't a clue about the second, including practically all the people who make movies. Movies don't find these problems interesting. A large part of the explanation for this must lie in the fact that neither the performers nor the people behind the camera in Hollywood seem to stay married any length of time. Thus, the only life to which they can hold a mirror is a distorted one. In Hollywood films, anyone who has been married ten or fifteen years or more is presented as a grotesque or a laughing-stock.