I've been with my boyfriend for almost 4 years and he hardly ever initiates sex. He always says he's too tired and usually I have to nag/whine and sometimes break down and cry about not getting sex from him. I constantly think that if I lose enough weight that maybe he will want it more (in my mind that's how men are, the smaller you are the more sex they want). I feel like maybe it's really because I have thick thighs and maybe I crush him when I'm on top of him....I'm too afraid to dress sexy in the bedroom because I'm afraid he'll think "ugh, she REALLY thinks she looks hot in THAT?" or "she's so fat, how can she honestly think that looks good on her!?" When I talk to him he says it isn't me, but I know it is I just know it....He doesn't have ED or anything and he's only 27. Shouldn't he want sex multiple times a day? Or at least once a day and not once a WEEK? What should I do to find out the REAL reason he doesn't want sex a lot? I'm trying really hard to get super skinny and I'm getting braces and hopefully a nose job, so I need other ways to get him to want me, without me dressing sexy because that is just GROSS!

Any advice? Sorry If I went off a little, I do that a lot. I need to get back on meds.