The love of a lifetime

My first actual book so have fun! Rosabeth and Adrien have known each other since high school. They dated briefly but after one mishap, she broke up with him. Rosabeth regretted it for years, until she gets a job and betters herself, and slowly gets over her love for him. Then one day he comes into where she works. After months of forgetting him, she sees him and remembers her love for him.