Fat Chance(2016)

Alison, an overweight dental assistant, is challenged to find her self-worth when she falls into an online relationship with her long-time friend and crush, Justin. But there's a problem -- she used the photo of her attractive friend in her online dating profile, which is what caught Justin's eye. Alison spends the summer with Justin, balancing both versions of herself until the secret slips out. Inspired by a true story.