This is why I usually prfer it when the romance options don't have side loves when you don't romance them. Feels like you're breaking some apart and feels like a little less canon.
Feels a bit like that with Ryona x Bash, I hope they don't elaborate too much on it or their routes might start feeling a little out of place too.
I get having a background and making the game feel "alive", but I'd rather not have my character's love interest be in love with someone else in all other routes (makes it feel canon and MC's route kinda... make believe).