The condition explains the behaviour
Let me tell you a story that should help you deal with explaining a psychosis.
There was a customer of mine who had dementia. She had been diagnosed with dementia and everyone knew she had dementia.
But her friends, who knew she had it, would say 'Yeah but she leaves shopping trolleys all over the front of her lawn'
or 'She drove to the store then walked home because she forgot she drove'
or 'She keeps asking me the same question over and over and didn't seem to know who I was'
And my response every time would be 'Yes, because she has dementia'
And they would reply almost every time with 'I know, but she looks so unkept and is so vague'.
So I would reinforce that 'It's because she has dementia!'
The point I am trying to make is people get caught up in the weird behaviour the person is exhibiting that they forget it's really the symptom of the condition they have. People have a hard time differentiating between the personality and the condition.
Just like with psychosis.
I found myself, after psychosis, having to justify the things I said or did. But the truth is I did or said those things because I was in psychosis. And in fact, I have little to no memory of it all.
But people around me at the time, friends in particular, were scratching their heads wondering why I behaved in such a way.
But the truth is I was psychotic. I had psychosis. Just like that lady has dementia. It's all part of the condition not the personality I would normally exhibit.
It's important to differentiate the two.
And a message to the people who have been in psychosis: don't try and understand it. Whatever you saw, heard, experienced through the senses cannot be understood. Like a vivid dream you try to make sense of upon awakening. You just can't make sense of it so don't even try. The answer to it is 'I was psychotic' and that is the only explanation you need.