That must be so hard to look back on but totally sounds like what PND can do to your mind. It is so messed up but so common and terrible to experience!! Try not feel guilty about it, easier said than done
I used to mouth the words to my child "I hate you" and make them cry as my face must have been scary to look at
I feel so terrible about it now that I idolise them!
I know PND can manifest itself different in everyone. But the thought of shouting down my phone and taking loads of videos whilst in depths of it is just beyond me. That is why I think Kate is bad, not mad!