My Boyfriend Is Hotter As A Girl

Sunny's high school sweetheart has been acting strange since she came out as bi. Spending more time at the gym. Isolating himself. Letting anything but 'self improvement' fall by the wayside, until finally he dumps her, unceremoniously. By text! Text! 
She unfortunately can't resist when he texts her begging for help. What she finds instead of her gym bro boyfriend, is a woman, built like an Amazon and shaking like a leaf.