Ask Dan & Jennifer

Ok, so my boyfriend and I have been dating for almost three years and he is always saying that i never come onto him. This really upsets me because I want to but I dont have the natural urge to if you know what i mean. This has really effected our relationship because he feels like I am not attracted to him! Since we have been together I feel that my sexual confidence is at zero because of things that have happened between us in bed. He has told me that I am awkward and not necessarily sexy...and this doesnt help me at all. I feel like this could be a reason that I dont want to have sex, but it is just so frustrating!! So my question really is why don't I ever feel horny and why don't I have the urge to initiate sex with him?
I would really appreciate some help, this really upsets me and stresses me out... I would like our sex life to improve just as much as he does.:confused:

Thanks