Rivalry

[Oralee]

When you remember that [one kid] you had a crush on from [the Garrison] and told your gay dad all about, so instead of getting rejected or making it awkward, you pretend you hate him.
It backfires when you have a [bonding moment] and he pretends he doesn’t remember it.

[Dianne]

Competition for the same objective or for superiority in the same field.

[Michiko]

a situation in which people, businesses, etc. compete with each other for the same thing: