Okay, so I really hate doing this and it really annoys me but I need help. I am looking for a story.

Characters: Bella and Edward(duh)

Summary: Bella's ex (newton?) divorced her cause szhe was fat so she went and joined a gym. Edward works at that gym and he becomes her trainer. She works on losing the weight. He is labeled a "chubby chaser" by Emmett. They end up together after some shit (you know). Oh God please help me. This story line is stuck in my brain and need to get it out! Lol Thanks if you can help!