I want add here two things that I got from
http://talkingtogirls.expertforyou.com/ -
Not Listening to women : One of the biggest mistakes a man can make around a woman is to make her feel like what she is saying isn't important.
A Woman Is Not a Possession
While there are many times throughout a relationship where a woman like to feel protection and support from her man, there are also times where she doesn't.
This means that no woman wants to feel like she is someone else's property, or like she can't be in a relationship while maintaining her own independence.
The minute a man forgets this is the minute that his relationship with his girlfriend is going to begin to head downhill, so always remember that a woman wants support from her man, not for him to take over everything.