I think 5 is right on here. Men don't typically just vent their problems the way women do. Hardest lesson for a man, when you wife tells you her problem, she did not just ask you for an answer! For men, it is the opposite. If I share a problem, I am looking for a solution from that person.
Men tend to lump all women together as we understand none of you. If my Mom will screw me over... The upside is, you ARE different and that will when out over time. I argue a lot with my wife over money, mostly having to do with the definition of practical and needed.