^^I mean, it's pretty obvious that Kiara loves Calli as a friend and vice-versa (talking about the RL people here). They've gone over that at great length and in a variety of contexts. Like, Calli nearly shelled out 3,000 dollars on a fancy hotel room for their trip, I don't have any friends close enough that I would do that for them lol. But yeah, there was never any indication that it was romantic IRL.
And TBH, if Kiara's actress did act towards Calli's actress the way Kiara the character acts towards Calli the character, it would be sexual harassment, so we're probably better off that way...