It depends. It depends on how low her self-confidence is. Being shy or introverted is not the same as low self-confidence. But, a severe low self-confidence affects almost everything in a relationship, from how the couple decides where to go to eat, to sex, to trusting each other. So it's a big issue for me anyway.
Also, if she is unable to open herself up to the boyfriend in a reasonable amount of time, this indicates she has trust issues which she should fix. You have to take a chance and risk getting hurt, in order to trust people. I simply relax, take a chance, and trust people unless I have evidence I should not. No risk, no reward. And most strangers I meet are very nice people worth trusting, if only for a minute. Even that big, scary, tattooed guy in line behind you will turn out to be a really nice guy, who is simply sick of being judged before people get to know him.
This is why women like self-confident men. Confidence affects everything in a relationship, including if the man is able to open up emotionally to the woman, which women really want.
Last edited by bulrush; 29-07-11 at 12:02 AM.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
(Please note, we give the best advice we can based on the information given in a post. For better advice, please include the age of all romantic partners.)