Let's assume—she did say there's some family tragedy here, so it took her a while to get back to here—that this is accurate.
For somebody who sends you a threatening phone call, if you think of it as threatening or anything, do you not think...? It strikes me that if it were perceived as being some sort of difficult phone call, maybe the boss would call you back, or that they might not even call you back to deal with it. I find it strange and wonder why, if it was intimidating, they would just call you back with the answer and you didn't pursue it any further.
Do you wish to make a comment to that end? If it was such a threatening phone call, why was the answer so colloquial, to put it that way?