Putting a Scene to a Vote

Debating where my heroine in an upcoming manuscript I’m brainstorming discovers the horrible news that her love interest is dating her rival.  So I thought I’d ask for some help and put it to a vote!  Let me know what you think.

Facts to consider: My heroine’s love interest is a former teammate (friends for many years) but he is currently casually dating the heroine’s rival.

The hero doesn’t know the heroine has romantic feelings for him (he always dreamt of dating the heroine, but felt she was out of his reach).

How does she find out the horrible news that her secret love interest is dating her enemy?

A) At a restaurant, catching the two on a date (as she gets take-out)

B) At the pool during diving practice (all three are springboard divers)- they come in to practice together

C) At a movie theater, catching the two on a date

D) At an awards event featuring his accomplishment, with the rival on his arm

Let me know what you think.