Not really, but if the younger dude exclaims “IF IT'S OKAY, PLEASE ALSO %^&#$& WITH ME NEXT TIME!!!” and then that “%^&#$&” is never brushed off as a mere joke (perhaps even the translator's) but instead prompts a very visible fit of jealousy from the main heroine —
I’m not trying to see a romance between this new guy and the manager, I came here for the MC and FL. Mangaka always do this, they create a story centered around two people but once they run out of shit to write they introduce a new couple