From October 2015 to September 2019, Jenny and Caitlin pretended to hate each other.
The feud was real for about three days, and once they got over it, they decided they had to commit.
It started on Halloween, when their costumes (BB-8 and Spock) lead to a huge argument about Star Trek and Star Wars.
Literally no one else cared about this as much as they did but they were convinced they had to keep the bit going.
They started dating halfway through. Once they told everyone, absolutely no one was surprised.