Another way of looking at this queen in this situation if it doesn't represent another woman is that your boyfriend sees your lack of passion or capabilities (in his view, maybe not in reality) as a problem between you two. He wants you to be more like that queen, but thinks you aren't...especially in view of what you said about sometimes seeming emotionally disconnected from issues in the relationship. He could see that as your avoidance of facing things when he'd like to "fight" things out in order to solve the problems.
[Men tend to want to want to fix problems by stepping around the drama and getting to the crux of things, women tend to emotionalize and stew over them...that's just a generally accepted difference in the way the sexes deal problems and issues that I have read about in psychology studies and articles (I'm not claiming to be an expert on this!), and could be what the card is touching on here.]
Simply put: the problem could be that you are a woman and he is a man...so you each look at things from those perspectives, and that could lead to fundamental clashes that you can't really do anything about, except to learn to deal with them!
