Girl's Behavior

Girlfriend acting a bit weird with a fellow coworker?

My girlfriend and I work together delivering pizza (we are all 22) and we have another male coworker who my girlfriend talks to all the time, second to me pretty much

Anyway I normally work afternoons and they both typically work mornings where it’s just them two and a manager. I was fine with this until I realized the two of them have both spoken to our managers in order to make sure they work together at many mornings as possible. Not only that but they even call days they work together “gang days” and get all excited about it. I also found out that anytime they’re working a morning together they get ANNOYED when it’s busy and they have to deliver pizza because they’re not in the store together as much. They would both prefer to make almost no money if it means they get to hang out in the store. I find this very strange and it doesn’t help that anytime they’re together he’s CONSTANTLY making her laugh and they even made up their own version of rock paper scissors (just as a joke I’m pretty sure bc they always acknowledge how stupid that is)

Im planning to talk to my girlfriend about this soon so don’t give me the “you should talk to her”but I would appreciate an analysis on this situation. This is fuckin weird behavior right? Or am I getting worked up about nothing

Updates
1 y
Oh I also found out that he was considering transferring to a different store and she was thinking about going WITH him 💀
Girlfriend acting a bit weird with a fellow coworker?
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