(OC) was minding its own bussiness when suddenly, saw (Crush) being cheated with its new lover.

(OC) devastated goes back home having a mixed of emotions while (Crush) realizes that it was wrong so tries to figure out how to win its heart back.

Few years later, (OC) had moved on with its life and a fresh start but then saw (Crush) after those devastating years.
You choose their happy ending