Hmm, I'm going to post an update and hopefully that will fix things. You can edit variables with console commands. I hit ctrl+shift+K for mine but it may be different for you. Once there you can type into the console. For the Kiara missing thing you need the following variables to work storyline.prismQuest = 5 and storyline.kiaraQuest =10. This may mess up some other stuff in the game however.
For Blaire, I can see where I messed up. If it just says "Call me back" or "Hey, Call me", those are only suppose to trigger at low levels of Blaire/Kiara friendship. Its basically her getting mad about you hanging out with Kiara. If you are too high then the text is triggering but the passage is not. If you want to see those the variable is BK.like = 29 (it needs below 30 to trigger). You will have to work it back up or change the variable back. I modified it with the next update so the texts don't send.
So as it stands I don't have plans for a dedicated Kiara...yet. For the most part, she feels affection and lust for the MC but does not like him like that and has a crush on Blaire (There are certain thing Kiara does not do with MC that she does with Blaire for example). It may work out in a round about love triangle way depending on where things go.
As for the future storyline