He hid it well, and I'm still not sure why, but Tiberius could be wise sometimes, and he knew what kind of person you were. I don't think he ever would have held the last words against you, he would have understood, and he knew we'd mend fences for him when it all came clear. Please don't feel badly for that, we all have enough to feel guilty for, I don't want you to add to yours.
Though I really never knew how he didn't see you and Kima. I just thought maybe there was some kind of arrangement.
It's not your fault, Allura. Even if you had some part in it, that doesn't make it your fault.