<human>: I've been with my thin and attractive boyfriend for almost six years, living together since summer 2012. We get along very well, are successful, have fun. We balance each other out in many ways. I had always felt there was a nice power balance in our relationship, too - we had mutual respect and admiration for each other. Then in October 2012, he asked me to lose weight: 20 lbs. I immediately got upset and shut the conversation down. I have always been sensitive about my weight, but still have a healthy BMI and am very athletic. I always thought he saw me as beautiful - an important thing for me. But his request shattered that illusion. 

We had a long fight after the 20 lb. bomb dropped - him insisting he would do it for me if I asked and not understanding why it was a big deal, and me feeling extremely hurt, ugly, self-conscious and insecure. Eventually I agreed to try to lose weight and he stopped making comments about it. Its been a year and a half. I have not been sucessful yet in losing weight despite calorie counting, changing my diet, agonizing over it, etc. I am still trying. But my self-image vis-a-vis my SO is only getting worse. When we have sex, I can't stop thinking about how bad I must look naked to him. When we go out and he interacts with pretty thin girls in our friend circle I instantly feel inferior. Yesterday I asked him to go to the store to get groceries and he brought home a 'diet' product for me. I was so hurt. When confronted he insisted it wasnt intentional. But now I am feeling that sense of inferiority and ugliness again. 

Reddit, I love this guy and we are getting pretty serious. Its been six years. Marraige is on the horizon. But I feel like my weight is the one thing standing in our way. Is my SO in the right? Will I ever be able to get over this insecurity?

Can you condense the text into a few key points?
<bot>: I am at a high-end healthy BMI and my boyfriend of six years asked me to lose 20 lbs. The resulting hurt and insecurity is making me question our otherwise awesome relationship. Can this be fixed, or are we doomed?