Dear Maggie (2014)

Yeung Tsz-wai, a loner, formed a bond with Lam Cheuk-yin during school lunches and soon looked forward to that time each day. She admired Cheuk-yin but grew discouraged by his ambiguity and developed feelings for his friend, Chu Chi-kit. When Cheuk-yin discovered this, all three fell out. Years later, Tsz-wai, meeting Cheuk-yin again, realized her mistakes.