Two exes, one weeklong destination wedding, what could go wrong?

Lorelai Anneliese Zhao has always separated her life into two unequal halves. There was life before meeting and falling in love with Lucas Sebastian Murray, and there was her existence after she was forced to break up with him.

Before:
Lorelai was a college freshman trying to balance too many responsibilities. After being the unwilling catalyst for her parents' separation, Lorelai felt honor-bound to provide for her family financially, meaning she didn't have time for parties, boys or anything else people said ought to happen in college.

Falling for Lucas was, at best, an inconvenience, and at worst, a weakness her father could exploit.

Present:
Almost six years later, Lorelai is purposefully delaying graduation, knowing that the moment she finishes her PhD, she’ll have to join her father’s company and start the rest of her so-called life.

She's worked hard to avoid news of Lucas over the years (her sentiment analysis dissertation project helped), but there's one event neither she nor Lucas can avoid: the destination wedding of their mutual best friend, Brody.

To anyone else, a weeklong, all-expenses paid trip to Hawaii would be a dream.

For Lorelai, it'll be torturous.

She doesn't want to answer Lucas's lingering questions, or face feelings she's worked hard to bury. More than that, given Lucas's meteoric rise and her health issues and ongoing family drama, she's more convinced than ever that she's the un-lucky charm her mother always labeled her as.

The Statistically Unlikely Reunion is a standalone STEMinist romance, part of the connected-universe Grad or Die Series, with a guaranteed HEA.