<human>: Can you provide a brief overview of the text?

Before you start yelling at me for being a superficial bitch, I've been working my ass off (literally) working out and eating healthy. I've lost 19 pounds and am continuing to work toward my weight goal. My boyfriend on the other hand has gained a ton of weight (20 pounds or more) since we started dating. It has completely changed how he looks to the point where I'm not really attracted to him anymore. We used to have sex constantly, but now I just don't ever want to because of his weight. 

Listen, I love the guy. He's super awesome and is by far the best boyfriend I have ever had, but I think it's unfair to me that he's being a lazy ass. So come on Reddit, please help me out!
<bot>: I'm losing weight, but my boyfriend isn't. He's gotten fat and jiggles when we have sex. How do I fix this?