Pink (Luka x OC)

Life could not be going better for Leya Parkin. She's got everything she could ever want, including the guy she was pining after for months. She's perfectly happy, and with her 2 year anniversary coming up with said boyfriend, she's desperately trying to find the right gift.
Luka, on the other hand, has been acting weird. And not like his usual wise, advice-giving know-it-all weird either. More like avoiding Leya as much as possible, ghosting her, and becoming way more quiet and secretive.
So there's also that issue.
When Leya investigates and finds out Luka's been frequently going out to talk to this girl she's never even met, she gets suspicious, then sad, then heartbroken. Would Luka really be cheating on her, after almost 2 whole happy years together?
And if he is, why?

*Sequel to Blue*