Few of my friends (guys) and I have come to conclusion that this actually is the biggest problem when men and women try to communicate espacially in romantic relationships.
Women share their thinking process and start from somewhere and get to the point/conclusion after long long talk and men have already stopped listening at this point and they miss the main thing.
Men talk when they have come to some conclusion. They don't even tell they are thinking about something or something is bothering them. Women easily think that at this point men are mad at them or something similar even though men might be thinking about work or something else that has nothing to do with the relationship.