<human>: Can you condense the text into a few key points?

I have been with my boyfriend, let's call him A, for 9 months. These have been the best 9 months of my life. A is sweet and kind to the point that he offered me a place to live when I had nowhere else to go. 

In the beginning of our relationship, we couldn't keep our hands off of each other. It makes sense because we were in the honeymoon stage.

But here lies my problem. I recently gained some weight and haven't felt very pretty or much like myself. A still finds me beautiful and desirable but I can't get out of my head. We are at the point where sex is minimal. I want to fill his needs because I love seeing him happy but I never am in the mood. He is very patient with me and says he will do whatever it takes to make me comfortable but the only way I think I'm going to love myself again is to lose weight (which I am in the process of doing. Changed diet and going to the gym 5 times a week). Until I can reach my goal, I need your help. I don't want to lose A and I want to keep him happy. What should I do to get out of this mindset?
<bot>: Recently gained weight. Sex with bf is minimal because I'm never in the mood. I need a new mindset.